L46 cam specs. She is in great shape, and still a very strong runner.

L46 cam specs 50 4 ATC / Max lift: . 30"+/- . Contact me through blind side project on Facebook if you would like info Mar 19, 2003 · It's just the good old tried and true, -929 cam that Chevy put in darn near everything at one time or another. The 68 cam shown may actually be a non-Corvette item. Sept. 010 tappet lift, and 242/242 at . 450/0. Check for Availability Chevrolet Performance Hydraulic Flat Tappet Camshafts. 02" intake & 1. MISUMI USA has all of your Flying Cam Units needs covered, with over 3. 700” forged connecting rods, often referred to as GM’s “pink” rods by many in the automotive community, due to a specialty pink Dec 16, 2021 · L46 5. Having run both of these in the same high compression 350 motor, the L46 cam was a better overall performer. See full list on corvsport. The L-79 cam is good off idle- 5200 RPM set up stock. back in my day, was a lot of fun but had no low end torke, would be side ways with the 308posi tell at 6000 rpm. The "962" camshaft for the L46, L82 350 CI engine Specification is: 222 degrees duration intake and exhaust 1969 Chevrolet Corvette Stingray L46 specs, 0-60, quarter mile, top speed, engine specifications, pictures, updated October 2024. Apr 6, 2003 · My 79 corvette original L48 was rebuilded based on the L46 plateform, using . Mar 1, 2010 · Where the L76, DZ302 and LT-1 were factory equipped with solid-lifter cam profiles, the L79, L46 and L82 were equipped with the more user-friendly hydraulic flat tappet cams. The block is original bored . R. 460, Duration @ . Transmissions: standard gearbox is floor-mounted, wide-range 4-Speed, 2. 195/202, 112/108, . Mar 18, 2011 · The M54B30 exhaust camshaft lobe profile is identical to 1993-1995 325i M50 exhaust camshaft and 1996-1998 M52 exhaust camshaft. It retained the original rebuilded TH350 sporting improuvement shift kit 3500 TCI converter. 5 rpm each. 447/. 1969 Corvette VIN decoder. 050" figure was 194º intake and (I think) exhaust with . The cam’s new part number ended with the more widely-known “097”, aka, the “Duntov” cam. I want to run 93 octane or less pump gas. TQ is softer early and peaks later by 500 Highest HP & Middle TQ TQ drops to 350-L46 levels and does not recover/pass it til 4500rpm. 050"; . The HP ratings for standard engine was 300 HP, the L46 was 350 and LT1 was 370 HP. 1970 Corvette Options RPO: Description Production: Price Custom Interior Trim 3,191 (18. 050 In/ex–Lift in/ex–centerline–description Small Blocks 3849346 Mechanical – 254/254 – . 4 & Gen. The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. Any thoughts or experience with this Howards Cam 110031-14. THe distributor should be properly curved for ANY engine beit L48/L82 from the smog era. a standard hydraulic cam for about $150. 450 / . ThinkPad L460 Platform Specifications Product Specifications Reference (PSREF) Lenovo January 2017. 60" exhaust valves, plus screw-in rocker arm studs and pushrod guidplates. The difference between the 962 (L82) cam and the 151 (L79) cam is so slight, the aftermarket cam grinders don't make a duplicate for the 962 camshaft. This cam will produce a "performance" exhaust note and idle while still producing enough vacuum to operate the power brakes and headlights. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low pricing. Originally equipped in 1957 283's, it lasted through the 1960s with the same specs and a superceeded ramp profile as the #L48 & #L46 cam. 204-degree intake duration and . '962' cam / L46 / L82: Int Dur (050) 222 Exh Dur (050) 222 Int Lift 0. Newest build from Blind Side Motor Works for Bob G. 0:1 (L46, LT1 Engines) Rocker Arms Stamping, Steel Rocker Arm Ratio 1. Note in the lower right hand corner of the cam card that Summit Racing specs this cam as +4 Advance. I have been looking at several ‘stage 1’ cams from the major players(BTR, GPI, TSP, and Cam Motion titan 1). Two way bookshelf speaker system. A. The console data plate says it is 350\300. 460 lift, 222 duration) and an induction system consisting of a cast-iron intake and Q-Jet carb. flat tappet E: 222 E: . It probably feels & runs the same, only comes on the cam sooner and is stronger. 050" on a 108 LSA. L46: 350ci, 350hp Engine: $158. The 350 cu in (5. I have long tube headers, CAI, and E85 currently. 1970 They all had Cast Iron Heads, 780cfm Holley. The variation between a sol & hyd lobe is about 8-15*. 050": 224/224 Valve Lift w/1. The Stingray name (now spelled as one word) appears on the front fenders above four vertical fender vents. Shop CAMRiSE Flying Cams - Compact for Pierce, Long Stroke, CA-L46 from MISUMI. 50 Rockers:. Camshaft, Hydraulic Flat Tappet, Duration at . … Mar 7, 2013 · C3 Tech/Performance - Camshafts 69 l46 - Ok guys and hopefully some gals. 484/. I'm planning to go with a stock L46 cam with flat tappet hydraulic lifters. 454" Duration: 268°/268° RPM Range: 1500-5500 C. 6 valves) 12-13-23 04:52 PM - Post# 2864911 is there a complete accurate list of SBC factory cam specs. Designed as a replacement cam for the 2002-04 LS6 engine, its ability to help generate the horsepower and torque you need to maintain optimum performance makes it an ideal Corvette C5 Z06 cam. 25:1 compression ratio. 02/1. 450" Exhaust Lift- . 435/. 3L EcoTec3 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More L82 5. May 10, 2021 · 1970 Corvette L46 7040207 issues - several Cliff's Quadrajet Parts and Rebuild Kits (allegedly but in reality probably 10. 02 valve heads and 11 to 1 pistons and is the first use of the camshaft that ended up being used in the 73-80 L82. Apr 5, 2010 · It might be more accurate to measure valve lift and compare to the cam specifications for the L46 cam and do whatever you can to determine if the compression is roughly as advertised with the same. 459 117 LSA) Duration: Duration is the time that the valve is open. However, the biggest difference is that the L79 cam is 4 degrees advanced from the 0 advance on the L46/L82 cam (p/n 6962) Although the latter cam has . Does anyone have experience with any of these Mar 8, 2006 · You can duplicate (+\- some) the specs of the 350hp engine by adding better heads and cam. Converting your flat top piston 350 to Vortec L31 heads (PN: 12558060) and the L46\L82 Cam (PN: 3896962) will get you close. JBL L46; ¥ 55,000 (1 unit, released in 1982) Commentary. Info is all pulled from internet resources, so please call it out if there are any errors. 457 inches and a total duration of 268 seconds. They feature smooth idling cams for daily drivers, trucks, vans, RVs, and 4x4s. Feb 23, 2007 · 69 L46 was a 4-bolt as were most if not all 350's until 71, forged crank and rods, 2. The L46 and L82 used almost identical camshaft that’s where it ends. If you want the smooth 500 rev idle and stump pulling low end torque of the 300 HP engine with the top end power and revs of the L-79, consider the Special 300 HP configuration with the McCagh Special camshaft. It also was avail thru 1980. Feb 21, 2006 · HW = 4-speed, Rochester 4-bbl, Spec Cam (the 962 cam, . Mechanical lifter cams are problematic because they are never specified at . Engine was rebuilt in 1999 and is bored . Apr 5, 2006 · I am going to pick up a L48 from a 1969 Nova (300HP 350) and I have looked on the internet for 2 days now trying to find the specs for a complete engine. For 1996 LT1 and LT4 engines, the dowel pin is in the correct position extending . I have Comp Cams 1. 25:1). There’s Dyno sheets that show what these engines produce. 327/350 cam was on 114lsa, but it was ground with faster ramps and installed at an earlier ICL than the later version, wanna say ICL was 107. I have a 69 350/350 vette, with 11:1, compression. The GM cam profiles are soo far away from the aftermarket grinds that the specs do not behave the same as an aftermarket grind. Feb 24, 2021 · Chevrolet Performance Hydraulic Flat Tappet Camshaft 1968-81 Small Block Chevy L-46 and L-82 Corvette Sep 29, 2005 · A simplistic but accurate way of looking at the L-46 is to think LT-1 with an L82 cam and an L48 intake & carb. Both have a valve lift of 0. Dec 1, 2023 · I used to run a #218 cam from Oregon Cam Grinding in a 327 25 years ago. 050" There is a lot of concern over Comps cams lately. 028 inch Crankshaft Material: Forged Steel Camshaft Material: Cast Alloy Iron Oil Pump Type: why did everyone fear the 350-hp 327 in a chevy ii? full dyno results-l46 350-hp 350 vs l79 350-hp 327 vs l82 250-hp 350. It's set up with factory specs and compression. 050 in. 6 full roller rockers for the heads. 460" lift w/1. Good pick for a SBC Block: Apr 16, 2021 · My understanding is that it's the cam from the 11:1 L46 but with 3 degrees of retard ground in and slapped in an 8. 620" from the end of the camshaft. 43%) $158. I plugged in my engine and several of the cams being discussed L46/82, Crane 278H10, Comp 268H, and of course the ISKY cam that is in the car: L46/82 intake closes at 85 ABDC, the calculator predicts 80 ABDC, Advanced 4 degrees you get 76 with a DCR = 6. 0:1 compression, 4-bolt mains, forged insides, hydraulic cam, cast intake with quadrajet, etc. Including 3896962 - 69-81 L46 / L82 Camshaft- Small Block Chevy- Flat Tappet Hydraulic. L82 has forged pistons, L48 cast. 050" rise above the TOP OF THE CLEARNACE RAMPS, which is what you need to give comparable results for a hydraulic cam specified at . Vette restorer 65-67L79 spring p/n3863152 69-81L46 and L82 p/n3896964 70-71 Corvette and Camaro LT-1 p/n3972182 cam spring p/n3927142 11. The '69 Corvette was visually identical to the 1968 model, with the exception of the "Stingray" (now one word) emblem over the side "gill" vents and the 350 replaced the 327 small block engine. Mar 23, 2018 · 'You are correct in your assumption of a hyd cam of 230/230 @ 050 being close to a 242/242 solid cam. 030 exhaust. Look at the specs for the old GM "151" cam. Although the overall tone of the critics was marginally more positive by the end of the 1968 model year, GM recognized that there was still a way to go to fully win over the same people who were so quick to tear the Corvette apart. This brings up an interesting point that will also help when selecting a camshaft. 52:1 low gear. Cam specs are 212/222 @ . 030 over, flat top pistons(4 reliefs), 64cc aluminum heads 185cc intake runner 62cc exhaust runner, 2. It had hydraulic cam, a 4bbl Quadrajet carb, cast pistons, 4-bolt mains, and originally a 10. If the sol is tight lash, the difference is closer to 8*. L82 and L48 have slightly different timing curves. The only thing you should need is a cam and pistons. /Hyd. 398 gross lift. Is this close to the L46 cam? Here is what the engine/car is (pretty vanilla): 1970 4 Bolt 350CI bored 0. Sure the cams are different, but i also believe the L30 had a low rise cast iron intake which would increase torque while lowering hp as apposed to a high rise intake which would do the opposite increase hp while lowering torque, then the heads of course Apr 20, 2020 · No discussion of iconic engines from the muscle car era is complete without consideration of Chevy’s legendary L88. HP moves up 500rpm. Jun 5, 2010 · L46 cam is the same as the later L82 vette 450ish lift or so. 3L EcoTec3 Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More LS and LT Engine Reference Guide for the Gen. 416/. 3, Gen. I've heard 346/340 quoted as the seat to seat duration before in a couple places, but that number seems crazy. I spent a little time compiling a few factory cam specs for reference to see how they stack up. I have a pair of Trick Aug 27, 2019 · The L46 cam is available from Federal-Mogul under part number CS1095R, available through any NAPA store or Summit Racing (with lifters HT817). Oct 22, 2018 · A retrofit roller cam requires retrofit roller lifters (more expensive than the lifters that came in factory roller blocks), and a cam button to prevent the cam from moving back and forth in the block. Its highest output was 300 hp and 380 lb-ft of torque, before it was slowly neutered for emissions. Jebbys Howards cam recommendation makes a lot more sense and should be a nice upgrade for the OP. 5:1 Valve Train Lash, Inlet / Exhaust, Hydraulic Lifters Zero Valve Train Lash, Inlet / Exhaust Mechanical Lifters (RPO L72) Inlet: . Cam specs in car 0. Specs are: . Edelbrock Performer-Plus Cam and Lifter Kits. 030- . 11. The intake and exhaust valves have a duration of 218 seconds a 0. It's a Win-Win! Jan 30, 2014 · First, the standard 350, is not the L46, so not sure exactly what you are asking. Jan 28, 2019 · C3 Tech/Performance - L46 Engine Specs - Does anyone know if the L46 used stock valve springs? I am building one, and want to keep the springs as light as the cam will allow, so it lasts as long as possible. 450"/. You can use the Corvette C3 Decoder to decode other Corvette 1970 codes and view Corvette 1970 charts on the Corvette C3 chart article. The above is confimed in my "Corvette Black Book" by Mike Antonick,. The 300 and 350 hp terms are relative to the days before SAE Gross HP ratings. The L46 did like a little more than stock. comp cam 280 AH-8 camshaft. 6:1: Wheel Turns (Lock to Lock) 2. Lift: Lift is the maximum amount in inches that the valves are open. 050 IN 203, EX 210, lift with 1. New was the LT1 , a 350 cu in (5. 050-inch lift. Increasing lift equals more horsepower May 28, 2011 · The L82 came out in 1973 - essentially it replaced the L46 (last seen in 1969) as the '350hp' optional engine. Elgin part number is E-921P and the original GM number was 3896962. It's a little milder than the L-79 or L-46/82 cams. 050 IN 201, EX 208, lift with 1. 1970 Corvette VIN decoder. If large[ish] lash [ 0. . From what I understand the LT-1 cam has a little less intake duration and lift and has tighter lash on the valves. A cam, intake and carb change bring an L46 to LT-1 specs is very rewarding. Car was sold to me as a 350ci\300hp-ZQ3, but the engine is stamped as a L46-350ci\350hp-CTN RPO Code. Oct 20, 2023 · In 1970, a total of 17,316 Corvettes were manufactured, comprising 10,668 Coupes and 6,648 Convertibles. Jul 26, 2016 · C3 Tech/Performance - L82 Cam Specs - I've searched but have not found it? What are the original cam specs for the '78 L82? In today's technowlogy, what is a current cam that meets this original cams performance? Without going crazy what cam would work best using the original cast irone (rebuilt) heads, intake and Mar 3, 2013 · C3 Tech/Performance - Camshafts 69 l46 - Ok guys and hopefully some gals. 020 and 1. 0:1 Displacement: 350 cubic-inches Apr 20, 2007 · C1 & C2 Corvettes - New Crower 00321 cam impressions - This is the solid lifter LT1 cam but modified with slightly retarded exhaust opening and somewhat higher lift. While Jan 8, 2018 · I found some specs for the L46 camshaft, it does have better numbers. Your self-question is: (Howards cam vs GM Nov 27, 2017 · THe L82 had the old L46 cam. 218-degree exhaust duration at . 6 on L46. Both had the 4BBL also. I can remember buying these cams from gm for around $150. 100 domed pistons while retaining the 76cc heads ported on a flow benched ,bowl blended 2. 58. Lars L79 versus L46/L82 cam specs (duration @ . Shop CAMRiSE Flying Cams - Compact for Pierce/Trim/Flange, Long Stroke, CB-L46 from MISUMI. Lift 212/ 222, . It was a solid cam 225 int/ 225 exh @ . If you really want a higher performing stock solid lifter cam, go for the earlier L76/Z28 Duntov 30-30 cam. 435HP @ 5500 and 478 ftlbs @ 4000 Less TQ and more HP. Edelbrock Performer-Plus cam and lifter kits are designed for optimum torque from the low-end to the mid-range. 050- 222 Exhaust Duration @ . In Corvette: Technically Speaking, the 68 cam is shown as two different values. I totally agree that there are better aftermarket cams, even if it is an L48. Stock intake and heads. Dec 2, 2010 · Would have to look up specs for both the 327 & 350 cams to be exact. Feb 28, 2018 · L84 5. These numbers are only approximate. p. 50 29 ABC, Intake Close 48 ABC Intake Duration 243 degrees/ 205 Jan 14, 2019 · "Loyal readers will remember that the low-compression L82 was equipped with 882 heads, L46 hydraulic cam (0. 25:1, you will need the Vortec style intake manifold. This camshaft has the same specs as an L46 or L82 factory cam. Increasing the duration keeps the valves open longer which increases top-end power therefore raising the power band. You can use the Corvette C3 Decoder to decode other Corvette 1969 codes and view Corvette 1969 charts on the Corvette C3 chart article. 440/. 7 L) base engine (ZQ3) remained at 300 hp (224 kW) and the L46 was again offered as a 350 hp (261 kW) high performance upgrade. Chevrolet Performance Hydraulic Flat Tappet Camshafts. Apr 27, 2016 · C3 Tech/Performance - Max roller cam lift L46 - I am changing the heads to aluminum 2. LT-1 cam at . 0:1 compression, the proper cam specs (duplicates of the original) and original big-valve "fuelie" cylinder heads. 66) Chevrolet. #ElginintheEngine Feb 13, 2021 · I bought a 70 Z/28 at Jerry’s Govans Chevrolet Balto. 460 lift 224° duration at . She is in great shape, and still a very strong runner. 024 inch Exhaust: . 5. 050"): L79 Hydr. If you get the GM cam specs and try to apply DCR to a factory cam, you will get erroneous results. I did have a crane cam part number 113801, econopower. Jan 19, 2011 · So, the LT1 solid lifter cam had a bit LESS lift than the L46 cam and a bit longer duration. This cam was used by Chevy in all solid-lifter applications from ’57 through 1963. 447-114 – 327-350HP, L79 Sep 1, 2009 · There were a few mandatory items in each build up, namely things like 11. I do not know if the stock L46 cam profile was used on the rebuild. Jump up a little bit on the cam choice. L79 is very similar but the L46 generates a little more hp and torque due to larger displacement. L82 and L48 have slightly different heads w/ the L82 having larger valves. Md. 5:1 Valve Train Lash, Inlet / Exhaust Hydraulic Lifters Zero Valve Train Lash, Inlet / Exhaust Mechanical Lifters (RPO LT1) Inlet: . 00: A31 Power Windows 4,813 (27. 416) @ 110 ATC Intake Close @. L46 350CI V8 Corvette Engine Specs: Horsepower: 350 hp @ 5,600 RPM Torque: 380 lb-ft. Feb 21, 2017 · To demonstrate changes to lobe separation in action, we ordered three camshafts from Comp Cams, all ground with identical lift (0. Jun 8, 2021 · The specs are listed in the links you provided. 00: 4,910: Engine Specifications. I recently took her to my mechanic for brake issues, and I also L46 / L82 Camshaft- Small Block Chevy- Flat Tappet Hydraulic. 480, LC 115. Chevrolet Performance Parts - 3896962 - 69-81 L46 / L82 Camshaft- Small Block Chevy- Flat Tappet Hydraulic Orders may take longer than usual to process due to manufacturers having issues receiving and shipping parts. The 69 L46's had pressed in rocker studs while the 1970 and later L46's and LT1's got the better screw in variety. 050 dur: cam lift: Valve lift: lobe centers: L46/L82 - 350: 3849346: 314/314: 254/254: 254/254. L46 350: L36 427: L36 Oct 13, 2022 · The L48, the original 350 small block engine, is one of the most legendary. Wasn't a lumpy idle but it sounded good and definitely wasn't stock. 450 114 L46, L82 Corvette, excellent power, moderate torque. The 65-67 L79 350 hp cam and the 68 L79 350 hp cam are shown the same in some documents and different in others. With a 6200 red line. 030 cam or was that the 375 fuelly,that cam went 100,000+ miles in a 64chevelle ss 4 speed 283(301)cu. 465 LSA=108 Intake CL = 110 Intake Open 15 BTC, Open @. 460 of lift; and ground on 116 degrees of lobe separation comes close to a match (except for the rpm Sep 4, 2023 · I get that in 72 and up the hp rating drastically changed it changed due to fuel consumption policies and slowly introducing emissions restrictions. Apr 15, 2021 · The 1969 Chevy Corvette arrived on the coattails of critics who had been anything but kind to the inaugural C3 Corvette just the year before. THe L82 had the old L46 cam. 7L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More” Randy says: January 6, 2018 at 11:31 am. 277 (. L46 / L82 Camshaft- Small Block Chevy- Flat Tappet Hydraulic Nov 7, 2009 · Cam & Lifters: I'm expecting to have to replace the cam and lifters. 050" lift. 00 out the door. 25-1 CR. Most of the Howard's retrofit roller cam and lifter kits are about $670-680, vs. and adding a more aggressive hydraulic-lifter cam. 020 inch Exhaust: . The basics cam specs are: ISKY Cam: 205/226 . This was one of my favorite cams for a 327. 0:1), and after 74, a catalytic converter and 2-1-2 exhaust system. May 6, 2010 · Loyal readers will remember that the low-compression L82 was equipped with 882 heads, L46 hydraulic cam (0. 7 L) small-block V8 engine delivering a factory rated 370 hp (276 kW). Cam Series: American Muscle Advertised Duration: 292/288 Duration @ . C3. Two part numbers are listed and so there may actually be two cams. 541 intake and 0. The L46 has different heads, pistons , intake carb. $241. If you want a schosh more power everywhere AND still want a smooth, -929 type idle, then try the Performer cam at 204/214, 112/107, . bored 30over, edlebroke manifold and Holley Ultra cfm 770 all alumiumn carb. Easy on the valves and didn't require much The valves are the same so those heads should work. Also have headers, Apr 3, 2009 · Ex: Stock 1997 F-Body Camshaft Specs: (200/207. Intake duration @ . 460 Feb 19, 2006 · C3 General - L46 350ci\350hp specifications\components - Hey everyone, just got home with a new purchase and am having some problems that I cannot figure out. 2000-6000. 390"/. Attached to this crankshaft, was a set of 5. I don't know what comp cams is selling you or who told you that you have to change valve springs to run a roller cam but I guess no reason to go into that. The L46 was the higher performance version of the L48. Remember the hp rating methodology changed from gross at the flywheel with no accessories up to 71 and went to rear wheel hp in 72 and beyond. The high-rise, aluminum intake and 585-cfm Holley carb were replaced by a cast-iron, low-rise (for Vette hood clearance) intake and Rochester Q-Jet carburetor. Cam specs, Heads, intake, Valve sizes, carb ( Holley or Rochester), Main journal bolts, LT1 had solid lifters, allowing higher RPMs before valve float. It looks like when they rebuilt it they went with flat top pistons 30 over and switched to 202 angle plug heads ( I have originals but they would need rebuilt ) I'm thinking about switching to a bigger cam while its Jun 25, 2005 · Using . But I am fairly sure, the 327/350 was couple degrees smaller than the L46/L82 cam from the 350" motor. 450 Exh Lift 0. The LT-1, L46 & L82 all used 2. The M54B30 intake camshaft has an identical lobe profile to 1995 M3 exhaust camshaft and that is 9. 65 (You save $9. The heads I purchase have 64cc combustion Aug 4, 2020 · 400 / Eddy / 239/249 cam: Best Power. Total Production = 38,762 (22,129 Coupe, 16,633 Convertible) An extended production year yielded an unusually high build quantity. Essentially cam and valves are the significant difference from an L82/L46 for producing HP. 030. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. 1. 490" Duration: 274°/286° RPM Range: 1800-6000 12-246-3 parts at JEGS. those camshafts have a lift of 9. 60 valves An L46 is an LT1 with a hyraulic cam and a cast iron intake/Qjet instead of aluminum intake/Holley Jan 5, 2017 · C3 Tech/Performance - 1970 L46 camshaft replacement - Hello friends. Although it shared the same basic architecture as the more pedestrian Mark IV big-blocks that powered countless Impalas, Caprices, and even trucks, in actuality it was a carefully concealed racing engine disguised as a somewhat streetable powerplant. 447 lift) HX = 4-speed, Rochester 4-bbl, Spec Cam, A/C HZ is a 300 hp 350 with auto. 4. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. 420"/. When I had the old camel hump heads, with the 64 CC chambers, it would ping on 92 octane. 80%) Mar 3, 2021 · L82 Specifications and Technical Configurations The L82 V8 featured a forged engine block of a four-bolt main configuration, which housed a forged steel crankshaft. I have no intention of boosting the car or adding NOS. 7l should you choose? do the older muscle car small blocks make more power than the moder May 3, 2007 · Rick, My Chevy Power / GM Performance manuals all list the LS6 cam (#3904362) as 307I/298E at lash point, 275/271 at . It was installed in an engine, but the engine was never started. – 221/221-. 01". All my Apr 8, 2017 · It was GM part number 3896962 and was first used in the L82 350 CI / 350 HP engines. Its a chevy 350 out of my 83 k10 bored . Been there, done that! Absolutely loved the results! Mar 31, 2018 · I did not get a cam card with the build sheet so I bolted a degree wheel to the balancer and gave the crank a spin. Jul 25, 2016 · In addition to the extra 13 cubic inches, the L46 featured revised cam timing (slightly increased lift and duration) and a completely different induction system. Compression will be close to 10. 5 Crane 278H10 intake closes at 68 ABDC, the calculator predicts 64 ABDC, a DCR = 7. 460" Dec 29, 2012 · L82 cam is identical to L46. These include: The first or second generation of non-LS Chevrolet small-block engines Sep 10, 2019 · The L46 cam is available from Federal-Mogul under part number CS1095R, available through any NAPA store or Summit Racing (with lifters HT817). My goal for this engine to be a strong street engine, similar to a L79 but with lower rpm torque. crane cams had a blue-print series version of it was spot on. Sep 4, 2002 · In addition to the above, the LT1 had slightly more piston clearance in the bores. These Chevrolet Performance hydraulic flat tappet camshafts feature a special lobe pattern for balanced intake and exhaust flow. 447, EX . Apr 28, 2010 · The L79 cam is within 2 degrees of duration of the L46/L82 cams at the same 114 degree lobe separation angle. This was a great street cam that would RPM well too. The L46 3896962 Hydraulic Flat Tappet Camshaft Hydraulic I: 222 I: . Also have headers, Jan 28, 2021 · C3 Tech/Performance - l46 cam change - I have a l46 rebuilt @ 20k miles ago but sitting for many years. The Chevy 350 has a hydraulic camshaft and hydraulic lifters. And 11:1 is the compression for an L46 and they do have 2. 5 LS/LT, Vortec/EcoTec3 Engines Feb 24, 2021 · Reading a Cam Card: Advance. The Z/28 had a dual snorkel air Jan 18, 2023 · The targets are all arrived at based on AFTERMARKET CAMS. Crate engines are available, and used motors are often cheaply sourced through junkyards. Nothing wrong with hydraulic lifters, but add some whoopie as you go. Then page 157, in the Rochester 4BBL section, note the stamp number 7029207. I am coming to your for input and advice regarding a selection for a replacement camshaft for my stock L46 350/350 with the M21. Oct 18, 2018 · To read about the L76 truck engine specifically, check out L76 Truck Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More. 460" although any newer cam, even ones from Summit like #1104 or #1105, will give even more lift at the same 224 Elgin's E-274-S camshaft is GM #3733431/3896929. 10 under. 050- 222 Intake Lift- . "HYDRAULIC ROLLER CAMSHAFT AND LIFTER KIT; 1955 - 1998 CHEVY 262-400 1800 TO 5400 HOWARDS CAMS CL110245-12S Feb 1, 2022 · small block chevy vs lt1 vs ls1-which one makes more power? which 5. Jan 22, 2008 · C3 Tech/Performance - Info on 1969 L46 Rebuild - I have a 1969 Corvette 350cu/350hp that I am rebuilding. The only difference is the compression ratio and the lift and duration of the cam. Sep 28, 2017 · The high-compression, 350hp L46 was a Corvette exclusive—the only car in which the low-compression 255hp L65 wasn't available. This cam is likely very driveable at a lower rpm range than the 2000 in for the L46, and needs less rear gear. Great article! 1969 Corvette Specifications. 460 May 2, 2006 · C3 Tech/Performance - L46 vs LT-1 - With the horsepower ratings being so close is there really that much of a noticeable performance difference between an L46 and an LT1? Not knowing for sure but, isn't an L46 very close to an LT1 minus the Holley, Aluminum intake and solid lifter cam? Sep 18, 2008 · Chevrolet Factory Cam Specs Chevrolet Factory Cam Specs by part number Part # Lifter type–duration at . Jan 5, 2015 · Just wondering what cam I should run in my 67 Z28 302 engine. 032"], then the difference is closer to 15*. 410" or thereabouts. Apr 13, 2021 · I see a lot of cam threads with general suggestions such as Duntov cam or L79 cam, usually without real info on specs. particularly 1955 to 1970. Piece of crap. Approved* 12-210-2 parts at JEGS. 5 lsa A perfect match IMO. THe L46/L82 cam often does the trick although I'd consider a more modern dual profile cam similar to the venerable L82/L46 cam. Feature Base Engine RPO ZQ3 RPO L46 RPO LS5 RPO LT1 RPO LS7; Type: Camshaft: High-performance Jan 11, 2024 · Originally this camshaft was used in 1969 and 1970 Corvettes with 350/350hp engines and 1973-1980 Corvette with the L82 high preformance engine option. 92 Engine Specifications. May 5, 2014 · Eric is correct, I think they used up the supply of earlier mid 1960's 350HP 222/222 cams on the 290HP 350's and then went to the later 1960's L46/(1970's LT1) 350HP/(245netHP) 224/224 cams with a bit more lift of like . The lash was . com Nov 10, 2001 · Anyone know the specs on this cam and who makes one? This is the original part# for the L-46 cam (350/350). 7mm lift and 240 duration. 050. 030" = 355CI Stock 64CC heads port and polished (2. The L46 was an optional engine on the 1969-1970 Chevrolet Corvette. Lift, Chevy, Small Block See More Specifications | Check the Fit Hydraulic Flat Tappet American Muscle Camshaft; 1955 - 1998 Chevy 262-400 2000 to 6000 Howards Cams 117091-14 224 / 224, Centerline: 114, American Muscle, Nice Nov 10, 2021 · C1 & C2 Corvettes - Any thoughts on this camshaft - I have been considering different camshaft for my 1966 300hp 327 rebuild this winter. 31 $231. ] The aftermarket is strong for LS swap engines. Even the HP is less til 4500 rpm. 5 rockers IN . However even with all that I think all you could say is its roughly equivelant to the L46, but not an L46 in actuality. 460 in. Basically, it is an L82 with 11 to 1 (actually about 10 to 1) compression rather than the L82's 9 to 1 compression. Nice idle, near duplicate of the Chev L46 350HP/350 cam (GM#3896962). Also available: the 460-hp Turbo-Jet 454 with a large 4-barrel carb, high- performance cam, mechanical lifters, aluminum cylinder heads and a full-transistor ignition system. 013" more lift, this difference is insignificant. Going with a comp cams hydraulic flat tappet but dont know what specs to go with. 50 int. 485 Get the Best Performance with COMP Cams High Energy 268H Hydraulic Flat Tappet Camshaft Lift: . Somethings I do know, 300HP 380 torque, rochester carb, and the had smaller valves on the head than the LT1. B. What is the correct cam to use? The heads were not correct so I am looking for original spec Jun 30, 2010 · If you pull the solid lifter LT1 cam and put in the hydraulic L46/L82 cam and lifters, it would be the same as an L82 short block. 537 exhaust) and duration (230 intake and 236 The L46 needed 11:1, this one only needs 10:1 to get the same psi and power. 9:1 actual static CR engine. Jun 16, 2023 · Here are the ZZ4 cam specs I found from someone who ran it on a cam machine to profile it. 7L 350CI V8: 1969-70. 490" /. Here is that cam compared to true L48 and L46 cam specs: It's 212 duration at . 460 Lobe Separation Angle: 114 Intake Centerline: 114 Valve Lash: Hyd. 5 rockers; 112. 476, EX . Chevy 350 with the L46 camshaft. L48 had a cast iron intake, L82 had lighter aluminum. Aug 11, 2005 · To add to that I have encountered other GM cams (929 for example) that have multiple specs available that often contradict each other. In 1970, it was essentially the same motor as the high compression L46, with the exception of the addition of an aluminum intake with Holley carburetor, and most importantly a solid lifter cam. Here is a very similar cam from Howards, you offers a garauntee against lifter failure with their "certified" sets: Feb 3, 2018 · Another new cam featured the same duration as the previous year’s (077) high-lift version at 287 degrees, but lobe lift was reduced slightly. Its an excellent street performance cam and its available through GM Performance Parts: This hydraulic flat tappet is used on the 68-81 L-46 and L-82 Corvette. Apr 30, 2005 · I have a Mellings Cam 22210 with the following specs: I wanted the cam to be a 1970 L46 (350HP) cam but I am not sure if it is exactly what I am after. 484 – 114 – 327 365HP& Z-28 302 3863151 Hyd. After getting the lower half of the RPM range dialed in, it turned out to be an exceedingly nice cam, much better than the L46 cam at under 3000 RPM. 443" or so It is a very good ONE step up cam Apr 17, 2013 · 151 Cam Sounds good Carl, pretty stealthy cam not huge power out of the hole but it does have a definate sweet spot!! gm used this cam in the vette chevelle and the nova from 1965-68 top notch cam. Give DCR a try with the 350/350 cam specs and see what you get. 600 valves roller LT-4 cam at . 025 inch Crankshaft Material: Forged Steel Camshaft Material: Cast Alloy Iron Oil Pump Type: May 29, 2010 · was the 70 z cam refered to as the . It was a 349 hp (260 Oct 6, 2016 · Building my 350 and its time to order a cam. 454" /. 6 rockers IN . A '79 vette, although a nice ride, is not generally regarded as a particularly special collectible car so keeping the engine internals perfectly OEM should not really be that big of a concern, unless he wants to keep the car perfectly factory stock for NCRS judging. I'm running Hedman Headers. ,,small yellow line 14" tires,car was yellow so tires matched the car Sep 14, 2006 · Camshafts influence your engine's power output since they control how your engine will run. Curves move upscale . 003 to . 050: 224 / 224, Centerline: 114, American Muscle, Nice idle, Near duplicate of the chev l46 350hp/350 cam (gm #3896962). Definitely a mild cam and not worthy of a Corvette! Jun 13, 2020 · Buy an expensive modern cam I'll show up with my L-79 cammed 355 and blow your doors off. I want to build it to the original specs of an L46. Their unique profiles produce maximum low, mid, and upper rpm power. In '72 all HP ratings changed to SAE NET and subsequently dropped. The L65 (250 hp 2 bbl) and LM1 (255 hp 4 bbl) 441 heads had 76 cc chambers for a 9. Get the Best Performance with COMP Cams Xtreme Energy XE274H Hydraulic Flat Tappet Camshaft Only Lift: . 050" lifter rise is usually good for hyraulic cams. Feb 2, 2015 · The main differences were heads, intake, and carb. 450/. The Cam had less duration on the intake lobe. The LT1 was available from 1970-1972. exh valves. 459 i do not have the LC specs :chevy Jan 26, 2007 · C1 & C2 Corvettes - L46/L82 can spec question, technical, LT1 cam related - Anybody have teh lobe spread/overlap on this hyd cam? This is where I am going with this: My 327 motor ahs 11:1 pistons. They offer improved throttle response and torque. Has anyone seen a website with 348-409 Chevrolet Factory Performance Cams; Factory # Adv dur. Jan 26, 2010 · Hippie has perfectly nailed it with precise info. The ratio can be reached with dome pistons. all factory, [hyd & solid]somewhere? Feb 27, 2014 · If I do bring it home, it will get the GM 350 HO crate motor top end heads (Vortec) and the HO matching HFT cam, along with an Edelbrock Vortec Performer intake and a SMI Q-jetall of which I already have on hand. 460 Oct 20, 2023 · In 1969, a total of 38,762 Corvettes were manufactured, comprising 22,129 Coupes and 16,633 Convertibles. What this means is that when this camshaft was machined, the specs called for advancing the intake lobe four degrees. The L48 had a milder cam which produced great torque and a good idle. The 67,68& 69 302 Zs used the old “fuelie cam” same duration on intake & exhaust . @ 3,600 RPM Compression Ratio: 11. Dec 21, 2022 · I’m not a dedicated race driver just amateur/for fun. 27 Oct 10, 2002 · Re: L48 Cam Specs (74Coupe) As I recall, the . 0:1 (L46, L71 Engines) Rocker Arms Stamping, Steel Rocker Arm Ratio 1. 024 intake,. Feature Base Engine RPO L46 RPO L36 RPO L68 RPO L71 RPO L88 RPO L89 RPO ZL1; Type: V-8, Overhead valve: Block: Cast Iron: Camshaft: High Jan 4, 2018 · 20 responses to “LS6 5. 030 lash on both lobes. Created Date: 6/9/2017 11:26:49 AM Oct 4, 2005 · Seriously, The L-82 has an outstanding bottom end (almost identical to the LT-1, which it replaced), a good cam (same as in the L46 350/350 option of the early 70s), and is hobbled by bad heads, a low compression ratio (9. 0-1 CR and the L48 (300 hp 4 bbl) had 186 or 041 heads with 63 cc chambers for a 10. 0mm and short duration, around 225. Apr 19, 2021 · Steering Specs – Power Steering RPO N40: Type (Specifications are the same as Manual Steering except the following): Description: Hydraulic; pump powered cylinder assisted linkage: Gear Ratio: 16:1: Overall Ratio: 17. 050" lifter rise ABOVE THE BASE CIRCLE. how much power did these legendary Feb 11, 2016 · It had 11. Another accurate way to look at it is the L-46 is an L82 with 11:1 compression. Min rpm 2200, max rpm 5700. If you want to keep approximately the same duration and characteristics as the LT1 cam, a hydraulic cam with approximately 230/240 degrees of duration; . 030-0. 460 lift, 222 duration) and an induction system consisting of a cast-iron intake C3 Tech/Performance - L46 vs LT-1 - With the horsepower ratings being so close is there really that much of a noticeable performance difference between an L46 and an LT1? Not knowing for sure but, isn't an L46 very close to an LT1 minus the Holley, Aluminum intake and solid lifter cam? Dec 8, 2006 · Here ya go Mr. Jan 25, 2021 · First thing every says is the cam but along with the cam are heads, intake, and carb, all of these had differences between the 2 engines. One source for this info is the old HPBooks: 'how to hot rod your small block' or old GM performance mags from years ago. in. The hydraulic roller tappet style camshaft features a . Sep 11, 2023 · They do have a cam with similar specs as the L79 HYDRAULIC FLAT TAPPET AMERICAN MUSCLE CAMSHAFT; 1955 - 1998 CHEVY 262-400 2000 TO 6000 HOWARDS CAMS 117091-14 Lift: . 30 over with original crank . Same rpm peak. Warranty The following change may be necessary for correct engine assembly: For LT1 and L98 engines (pre-1996) the dowel pin in the end of the camshaft must be pushed in so extension from end of cam is . xfcv qbwbb cah fgk vihegne ubyhky jimyl jrao wal eap