JavaScript is disabled. The car has all orig drive train, Except for fuel injection and headers. The grind number is the ever noted number, far and more recognized than the model number. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Can a Wheel Speed Sensor Cause Limp Mode? The Fora platform includes forum software by XenForo. Specs @ 0.50 Cam Lift Opens Closes Duration SAE Specs@ (0.06/Rocker Arm Ratio) Cam Lift Opens Closes Duration Cam Lift Gross Valve Lift Center Line C/L Rocker Arm Ratio Valve Lash Clearance C-400-P INT. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. They are not flat, and they are recognized with a slight crown on the face. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. Is there any way anyone could hp me out? I bought a 34 Ford pickup with a 302 installed. Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! Chevrolet LS7 Camshaft. Answer (1 of 4): Most common specs for an engine would be for example. I only put the numbers here that I can prove, so this is a short list. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. Personally, I would trash the cam and go buy a new cam and lifter set that you know what the grind is. Terms of Service. Chevy V8 BBC Block and Head Casting Numbers. GM is recalling seven. On this cam card, you will see the LSA is 112 degrees. Four or six-cylinder can be attached to the valves. The pushrods cam stays above the cylinder, which is always above the combustion chamber. The lobes are also listed with various theoretical valve liftsthe one were interested in would be the LS1s 1.7:1 rocker ratio that delivers 0.558-inch of lift. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. CWC is the casting ID for CWC Textron. For instance, if you have numbers like 266H04, the last two digits are the numbers used to show the measurement of the lobes. Stamped numbers are 529506 and 031531. On this page you will be able to look up the original part numbers for 1958-1965 348 and 409 Chevy engine components such as Bell Housing, Carburetor, Camshaft, Crankshaft, Distributor, Generator/Alternators, Radiator Hoses and Starters. It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. His work has appeared in the "New Haven Register," Medford's "Mail-Tribune" and the "Ashland Daily Tidings." 330864: 1968 through 1991 oval port, open chamber, 2.06 in. Are you a newbie in dealing with cars and you seem not to know how useful a camshaft is and what is used for? Chevy LSX454 Camshaft. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. No smoke, but I have not checked compression yet. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. GM 6930 , 6964 and 5054. To Develop Good Eye Habits While Driving You Should? I have a 1969 z28 I bought a few years back from a friend who was orig owner. Thanks, Mike. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? The first two numbers are the degrees of opening being 210 for the intake and 218 degrees for the exhaust given normally at .050 inch of lift. however, depending on how you want to look at it. Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. Thank you, if you can help, send me an e mail and I will send you a picture. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. i have removed camshaft welsh plug to see numberbut cant identify numbers help would be appricated.i nee to see what size converter i would need. A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. diameter Looks to have stock cast iron heads and exhaust. Chevy Intake Manifolds They dont add to the function of the camshaft itself. 4485B 4391B HR112+4 R (with a line under the R ) then CC and at the bottom G1979-14. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Understanding Cam Design. Crane makes Blueprint camshafts for almost, if not, every GM, Ford, Mopar engine from the sixties and seventies. . Match the number to a Chevrolet camshaft part number listing. You can basically find it in the center of the cam between the lobes. the 4.3L LT1 was also referred to as the L99 (not to be confused with the LS variant bearing the same name) I have gone though the list of things to look for on the CC cam that came with a motor I picked up, but have not had much luck, so Im asking Jeff to have a look. Anyone have any idea what make and specs are of this cam? The suffix provides the. The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. I have this small block chevy the guy says is a 418 strocker a lifter lifted off at the track but now im looking at the cam and all it has on it is a S then another set of numbers is CH2 ..its a roller set up lifter ar comp cams and so is the rockers but i have no cam spec with car when i got it so im lost . 330545..73350.76cc chamber, 2.02/1.60333881..74-75350.76cc chamber, 2.02/1.60333882..74-80350/40076cc chambers340292..70's.Over the counter, angle plug, 64cc chamber354434..75-79262/267/30560cc chambers358741..76-79305376445..77-85350.76cc chamber, small valves376450..75-81262/267/305..6 or 7 exhaust bolt holes, 60cc chamber462614..77-79305.60cc chamber462624..75-86350/40076cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves458642..75-84350.350468642..76-up350/400471513..79267/350517513..79267/3501816887.63283.Made in "Canada", GMC HD truck3636839.552653703523.552653713358.55-562653713569.55-562653725306.562653731539.57283.283 HP FI3731544.57-612833731554.57-622833731556.57283.Truck, Made in Canada3731762.56265.Vette, 2x4 carbs3737775.62-67283/3273740997.57283.1x4, 2x4 & FI (exc.-283hp)3743056.582833743096.62-67327.GMC Truck3747363.57-612833747460.59-67283/32770cc chambers3748770.582833748772.58-612833755537.57-622833755549.57-622833755550.592833755585.62-67327.GMC Truck3767460.59-602833767462.62-673273767465.59-612833767754.59-61283.60cc chambers3767792.60-642833774682.60-64283/32770cc chambers3774684.62-64327.75cc chambers3774692.58-64283.60cc chambers3782461.64-66327Camel hump,no accessory holes,160/62cc port volumes,62cc chamber3782461X60-63283/327..Camel hump,no accessory holes,larger 172/64cc port volumes, 62cc chamber3795896.63-6528360cc chamber3795896.62-6432760cc chamber3798996.63-673273814480.60-67283/327..70cc chambers, 1.72/1.5 valves3814482.62-67283/327/350..75cc chambers3817680.63-67283/3273817681.62-673273817682.61-622833836839.552653836842.57-67283/3273837064.56-62265/2833837065.55-56265.Truck3848720.57-582833876775.60-67283/32775cc chamber3884520.60-67283.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3884520.62-67327.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3890462.66-67302/327/350..Camel hump,no accessory holes,64cc chamber3901068.87-up350.Crate motor, 285hp, 64cc chamber3911032.68307/32770cc chamber3912264.58-622833912265.63-642833912311.65-673273912313.65-673273917290.67-68307/3273917291.67-68302/327/350..Camel hump,no accessory holes,64cc chamber3917292.68327/350Camel hump,64cc chamber3917293.67-68307/32775cc chambers3927185.69-76307/327/350..70cc chambers3927186.69-70302/350Camel hump,64cc chambers,accessory holes3927187.69-70350.Camel hump,64cc chambers,accessory holes3927188.69327.74cc chambers3927188.70307.74cc chambers3931633.68-733073931635.68-763503931638.68327.Truck3932441.69-70350.76cc chambers3932441X69-70350/40080cc chambers3932454.69-733073932454.69-79350.Truck3946812.693503946813.69-79350.Truck3947040.68327."Right angle" casting identifier, 64cc chambers, good HP head,used in trucks, no accessory holes3947041.69-70302/350"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head3947041X69-70302/350"Right angle" casting identifier, 64cc chamber, 165cc intake port, accessory holes, good HP head3951598.70400.76cc chambers39642863503965742.70350.over the counter, angle plug3970126.67-71327/3503973370.69-70350.over the counter in US, Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug3973414.70350.LT1-350/370hp, Camel hump, 64cc chamber3973487.71-72350.1.94/1.5 or 2.02/1.6 valves, was also used on '71 350/330hp LT1, 75cc chamber3973487X71-72350.1.94/1.5 or 2.02/1.6 valves, 75cc chamber3973493.71-72400.76cc chamber3986316.71350.76cc chamber3986336.71350.76cc chamber3986336X71350.76cc chamber3986339.71307/35074cc chamber3986339X71307/35074cc chamber3986388.68-76307/3503991492.70350.LT1,Camel hump,accessory holes,64cc, straight plug3991492.70-up.over the counter,Camel hump,64cc, straight or angle plug3998916.72350.also used w/'72 350 LT1, big valves, screw in studs, 76cc chambers3998920.72-733503998991.72-73307/35075cc chambers3998993.72-73307/35075cc chambers3998993.current..350Goodwrench crate motors,"Hecho en Mexico", 75cc chambers3998997.72-73350/40076cc chambers3998997.78-84305/35076cc chambers4079261.7535010033867Aluminum,over the counterPontiac 23' head,62cc,angle plug, 196cc intake port10045434Over the counter Pontiac 15' head 55cc, angle plug, raised runner aluminum, "roll over" head10051101Bowtie, aluminum, 55cc, angle plug raised runner, 196cc intake port1006520287-95350.Truck1006520387-95350.Truck1006520487-953501006520587-953051006520687-953501006520787-953051008811388-up350.Aluminum, 58cc, angle plug, raised "D" port exhaust, 1.94"/1.5" valves10093328Over the counter, Pontiac 15' head aluminum,224cc ports, 61cc chambers "roll over" head1010617890350.LT5, ZR1, DOHC, 32-valve, pass. side, aluminum1017439091-95350.LT5, ZR1, DOHC, 32-valve, pass. What Happens When the Turbo Goes on a Diesel? I actually went through several lists and made some corrections before making this list. It's real easy to spot if the heads are off because of the small 3.74" bore. Could someone help me identify these cam numbers ? Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. This is a COMP Cams timing card. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. I have a cam trying to set startup timeing hr112 intake hyd .555 ext .576 duration .006 valve tapping lift 287 in 293 ex valve timing .050 open int 10 close btdc46 abdc exh :57 BBdc 5 ATC. If I rotate the camshaft the other side has markings of AO, D14. Drake studied journalism at Southern Connecticut State University. $426.78. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Installing a Timing Belt on Ford Ranger chevrolet image by Eduard Shelesnjak from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. Apr 13, 2014 Yeah, it has CR 760 stamped on the back, and then a date under it. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. This advances the intake centerline by that number of degrees. 586 FM13 216 00L 1991 Z28 Engine: '94 355 LT1, GM hot cam, 1.6 RR's, Ported Heads, Dyno Don's headers, #30 SVO injectors, stock internals with skirted pistons. View (5) $203.95 More Info. Hey. This number should be on your camshaft, followed by a number of degrees. I have no idea whats on the inside. A roller camshaft has its wheel attached to the bottom of the lifters body. We investigated a couple of our Comp off-the-shelf LS cams and found they were ground with 5 degrees of advance, but that is no guarantee that your camshaft is ground that way. I suspect you have . $510.45. Oct 8, 2010 #2 Z z28rod Veteran Member Apr 30, 2009 4,472 hopewell junction,ny Learn more about: Cookie Policy, Will a 50 Inch TV Fit in my Car? Good Day: Re: camshaft identification. The chevy part number for that cam is 3896929. Any time you are making this kind of important decision about your engine, it's . Any advice? In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. 0967 is the last four digits of the GM part number. Step 2 Locate the ID number on the camshaft. Once we found the hydraulic roller section, the first column lists each lobe by number. This is what is on the cam, it would not let me past a picture here. So why did this cam not have a lope to it in the 283, from everything I am reading long . (Yes or No). It's for a 99-04 truck. That gives us our first clue where to look for the rest of the numbers. journal.3.00" stroke3876768.283.forged..small journal.3.00" stroke3884577.327.forged..small journal.3.25" stroke3892690.350.forged..medium journal3.48" stroke3911001.307,327cast.medium journal3.25" stroke3911011.307,327cast.medium journal3.25" stroke3914672.327.forged..medium journal3.25" stroke3923279.302.forged..medium journal3.00" stroke3932442..267,305,350..castmedium journal3.48" stroke3941174.307,327cast.medium journal3.25" stroke3941178.302.forged..medium journal3.00" stroke3941182.350.forged..medium journal3.48" stroke3941188.350.forged..medium journal3.48" stroke3949847.283..forged or cast..sm. I was pretty careful with the float settings etc and it fired right up when put back on! 2. There are many numbers and terms used to describe the design of the camshaft and it's important to know how these numbers will affect the performance of your engine. Why are Volkswagen Oil Changes so Expensive? How Long Does it Take for Oil to Drain Back into the Pan? Step 3 Match the number to a Chevrolet camshaft part number listing. order on 8.1L big block engines is different than a normal big block. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . However, remember what to do after replacing your camshaft sensor in your car to avoid another frustration. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Inc. Lee's Summit MO. Crankshaft Identification Use these casting numbers to identify the crankshaft you have. From the distribute drive gear down are the folloing markings: CWC, 06, C14, EP1. The next information engraved on the cam was HR 114. i have a hr8ty 3050s/305is y7379 cc 212203 2811 out of a 1999 360 dodge magnum i cannot get any info on lift duration or center line also has cc letters asume comp cam ? Hi, I have a cam that trying to figure out the specs on. were used. Manufacturer Part Number. The last 3 digits of the number of the CASTING is frequently very close but not the same as the PART number of the camshaft assembly. item 7 1957-1963 Corvette Camshaft GM 3736098 Solid Lifter 283 Sp Hi Perf 327/340 360hp 1957-1963 Corvette Camshaft GM 3736098 Solid Lifter 283 Sp Hi Perf 327/340 360hp. Does Your License and Registration Address Have to Match? Also a great fitting cam for the earlier 302 or 327 Solid lifter Hi-Po motors used by Corvette, Nova or Camaro. by Greenlight Mon Nov 10, 2014 6:56 pm. It doesnt add to the function of the camshaft, nor does it play an important role. 1130.327.forged..mediumjournal3.25" stroke1178.302.forged..medium journal3.00" stroke1181.305,350cast.medium journal3.48" stroke1182.350.forged..medium journal3.48" stroke2680.327.forged..small journal.3.25" stroke2690.350.forged..medium journal3.48" stroke3279.302.forged..medium journal3.00" stroke3474.283.forged..small journal.3.00" stroke, military tank use4577.327.forged..small journal.3.25" stroke4672.327.forged..medium journal3.25" stroke310514..350.cast.medium journal3.48" stroke330550..350.cast.medium journal3.48" stroke354431..262.cast.medium journal3.10" stroke3727449.283.forged..small journal.3.00" stroke3729449.265.forged..small journal.3.00" stroke3734627.327.forged..small journal.3.25" stroke3735236.265,283forged..small journal.3.00" stroke3735263.283.forged..small journal.3.00" stroke3782680.327.forged..small journal.3.25" stroke3814671.327.forged..small journal.3.25" stroke3815822..265,283,302.forged..small journal.3.00" stroke3835236.283.forged..small journal.3.00" stroke3836266.283.forged..small journal.3.00" stroke3848847.283.forged or cast..sm. journal3.00" stroke3951130.327.forged..medium journal3.25" stroke3951529.400.cast.large journal.3.75" stroke, 10168568265.cast.medium journal3.00" stroke12552215364.cast.medium journal3.62" stroke, Gen. III, 6.0L12552216325,350,364.cast.medium journal3.62" stroke, Gen. III 5.7L LS1, 5.3L, 6.0L12553312293.cast.medium journal, 3.27" stroke, Gen. III, 4.8L12553482293.cast.medium journal, 3.27" stroke, Gen. III, 4.8L14088526305,350cast.medium journal3.48" stroke14088532350.forged..medium journal3.48" stroke14088535305,350cast.medium journal3.48" stroke14088552350.forged..medium journal3.48" strokeZR1, "LT5", 350 DOHC, 10106122350.forged..large 2.76" journal3.66"stroke, BBC TWO PIECE REAR MAIN OIL SEALS 3.76" STROKE used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T, 6223.396,402,427forged, 1053 steel 7115.396,402,427forged, nitrided, cross-drilled, 5140 steel3804816.396,402,427cast3856223.396forged3863114.4023863144.396,4023874874.396,4023879621.427forged3882841.396forged, cross drilled, nitrided3882842.427forged, cross drilled, nitrided3882847.3882848.3882849.427forged3887114.396forged, nitrided, 5140 steel3904815.396,402cast, nodular iron3941180.3942411.3965746.semi finished, forged3993804.raw, 5140 steel, BBC ONE PIECE REAR MAIN OIL SEAL 3.76" STROKE used on '91-up Gen.V and Gen. VI 366T, 427T, 10114186427Tforged, 1053 steel10114187366Tcast10114189427Tcast, TWO PIECE REAR MAIN OIL SEALS 4.00" STROKE used on '70-90 Mark IV 454 or Mark IV 502, 3520.454forged, cross-drilled, 1053 steel3521.454, 502forged, cross-drilled, 5140 steel3524.454forged7416.454, 502forged, cross-drilled, 1053 steel7463.454forged336782..454cast353039..454cast353638..454359730..4543962523.454forged3963523.4543963524.454forged3967416.454forged3967463.454forged3975945.4543963521.454forged, cross drilled, 5140 steel3965753.semi finished, forged, 5140 steel3975495.4543993878.454forged10051169454forged raw casting, ONE PIECE REAR MAIN OIL SEAL 4.00" STROKE used on '91-up Gen.V and VI 454 or 502, 10114188454cast14097044454,502..forged, 1053 steel, 3732692348forged3.25" stroke3733223348forged3.25" stroke3733226348forged3.25" stroke3741640348forged3.25" stroke3741642348forged3.25" stroke3788072409forged3.50" stroke3795589409forged3.50" stroke3824553348forged3.25" stroke3829027409forged3.50" stroke, 3837466409,427 "Z11"forged3.65" stroke3838416409forged3.50" stroke, CASTING#..SIZEYEARMAIN CAP BOLTS.NOTES, 140029..35080-842330817..40072-802355909..262..75.2355909..30576-792360851..26275-762Monza V-8361979..30577-792 or 4, some Canadian assembled heavy duty blocks have 4-bolt main caps, 366245..35078-794Bowtie366286.4Bowtie, siamesed, straight nodular iron main caps, 2-piece seal, 4.00-4.150" bores, 2.45" main journals. They are the flat tappet and roller camshaft. Any help much appreciated. Getting a camshaft can be a burden on many car owners; it works well when you have the right one. no idea) and only pulls about 10psi vac at idle. . If you happen to misplace your card, most cam companies now list all off-the-shelf cam cards on their website that you can easily print out. Thanks for any info I Think its a crane cam but I cant match the stamped numbers anywhere. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. i have removed camshaft welsh plug to see numberbut cant identify numbers help would be appricated.i nee to see what size converter i would need.numbers on cam end are z102 and also 14p. After working as a reporter in Oregon, he is now based back home in New Haven. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. This is the COMPCams equivalent of the Rosetta stone for cam lobes. The "2182" Casting number identifies this camshaft as GM part number 3972182. 1970 Mustang Mach I "Synergy Green Pearl"351 Cleveland - Fuel Injection "The Rattle Shaker" Complete nut and bolt rotisserie restoration LESS than 500 miles by C.A.R.S. I just rebuilt the carb as it was pretty dirty and leaked at the accel pump. Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. This same pattern was followed throughout the 1997 production cycle. A call to Comp at 1-800-999-0853 will probably give you some more details. There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 In 1971 he installed a 1965 Corvette fuel injection system. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. Dec 31, 2009. I can quote you the numbers from the 1964 "Parts and Accessories Catalog" but, be aware that earlier numbers may exist and be superseded by the ones listed in this catalog. 14010280 Small Block V8 1979-1982 267, 2 bolt 14011064 Small Block V8 1983 350, 4 bolt 14011148 Small Block V8 1987-1989 350, roller cam, 1-piece rear seal 14016376 Small Block V8 1979-1982 267, 2 bolt 14016379 Small Block V8 1977-1979 350, 2 bolt or 4 bolt 14016381 Small Block V8 1980-1984 305, 2 bolt 14016382 Small Block V8 1979-1984 305, 2 bolt Switching to Synthetic Oil After 100k Miles: Pros and Cons. JavaScript is disabled. If it is an aftermarket service replacement cam, it may not have the same last 3 digits of the casting number cast between the lobes. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. They include: The essence of knowing how to identify your camshaft makes it easy to avoid errors, unnecessary bills, and frustrations that come along with having the wrong camshaft. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Identifiers: Letter R, CWC, EP1, C4 and E8. Roller: 202/206 .403"/.415" Check this castingcarefully to determine which features it may have. How to Start a Car with a Blown Head Gasket (Explained). 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . There are two easy ways: 1. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. 4226 what kind of camshaft is it. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. A Solid Lifter Camshaft for 1970 1971 and 1972 Camaro Z28 or Corvette with the 350 LT1 Small Block Motor. Thanks, Your email address will not be published. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. A 'VE Table' is one of two methods used to control fuel delivery, typically the secondary method with the primary being a MAF (Mass Airflow Sensor). (Yes or No). On the outside there is a Carter AFB 9637 (625CFM) sitting on an Edelbrock manifold. Example: 63402A-2 enter 63402A And there is a CR inscribed as well off the lower left i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. You need the measurement of the diameter to compare with the database or any online store IDs. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. Add the two numbers together and divide by 2. * 54-55 all 6 cyl except PG, 58 D-D 2 nd design,59 series 3, 60-62 series 10-30,60-61 fleetmaster exc. A roller camshaft has the valve opened faster and remains at a higher lift for a certain time; it allows more airflow and more power, which reduces wear. There are 3 different ways to select your camshaft tightly. 330864..68-84ovalOPEN396, 402, 366T, 427T, 454 Truck330865..68-84ovalOPEN396, 402, 366T, 427T, 454 Truck330866..68-78ovalOPEN366T, 427T330867..68-73ovalOPEN427T336765..68-78ovalOPEN427T336768..73-76ovalOPEN427T336781..73-85ovalOPEN454, 118cc chamber, 256/114cc ports343771..68-86ovalOPEN366T, 427T, 454343772..68-86ovalOPEN366T, 427T, 454343783..70-76ovalOPEN454 Truck346236..75-87ovalOPEN454, 120cc chamber, 225/116cc ports352625..70-76ovalOPEN454 Truck353049..73-84ovalOPEN454, 122cc chamber, 255/119cc ports366765..74-78ovalOPEN427T473328..68-69ovalOPEN366T3856206.65-66oval..CLOSED..396, 97cc chamber3856208.65rect..CLOSED..396/425hp, 109cc chamber 396/375hp "Z-16" Chevelle3856213.66-82oval..CLOSED..366T, 427T3856260.68oval..CLOSED..396 Truck3872702.65-66oval..CLOSED..396, 427, 98cc chamber3873858.65-67rect..CLOSED..396, 427, 109cc chamber3876875.77-85ovalOPEN427T3904390.67oval..CLOSED..396, 427, 98cc chamber3904391.67rect..CLOSED..396, 427, 107cc chamber3904392.67rect..CLOSED..427, Aluminum, L88, L89, 107cc chamber3904393.68-76ovalOPEN366T3908952.67ovalOPEN427, "M.Truck", Marine3909802.67oval..CLOSED..396, 427, 101cc chamber3917215.67-68oval..CLOSED..396, 427, 101cc chamber3917219.68-85ovalOPEN366T, 427T3919840.67-69rect..CLOSED..396, 427,107cc chamber3919842.68-69rect..CLOSED..396, 427, Aluminum L88, L89, 107cc chamber3931063.68-69oval..CLOSED..396, 402, 427, 101cc chamber3933148.69-84ovalOPEN'69 396/265hp, 366T, 427T, 112cc chamber3933149.68-76ovalOPEN427T, 122cc chamber3935401.68-76ovalOPEN427T3946074.69&71rectOPEN'69 427 L88, ZL1, Aluminum, 118cc chamber '71 454 LS6, "round exhaust port"3964290.69-70oval..CLOSED..396, 402, 427, 454, 101cc chamber Large or small hex spark plugs used3964291.69-72rect..CLOSED..396, 402, 427, 454, 109cc chamber, Large or small hex spark plugs used, crate motor usage in years after 1970.3965198.68-69oval..CLOSED..396 Truck3975950.68-70ovalOPEN396, 402 Truck, 366T, 427T3986133.68-85ovalOPEN366T, 427T, 454 Truck3986135.69-73ovalOPEN366T, 427T3986136.68-84ovalOPEN366T, 427T, 454 Truck3993820.71ovalOPEN402, 113cc chamber, 255/114 ports3993820.71-84ovalOPEN454 Passenger and Trucks, 113cc chamber, 255/114 ports3994026.71rectOPEN454 LS6, 118cc chamber3999241.72ovalOPEN402, 454, 113cc chamber, 6272292.70-78ovalOPEN402, 4546272990.70-uprectOPEN454 service replacement, used on some MKIV crate engines, 118cc chamber10045427..rect.Pontiac/Chevy Aluminum, 91cc chamber Large Port, race10049875..rect.Pontiac/Chevy Aluminum Small port, race10051128..rect.Bowtie, Aluminum 72cc chambers Symmetrical ports10051129..rect.Bowtie, Aluminum "raw" casting, Symmetrical ports10052902..ovalOPENMkIV, 427T1010114091-upoval..CLOSED..Gen.V 366T, 427T1011415691-upovalOPENGen.V & VI 454, 118cc chamber1014127996-upoval..CLOSED.."Vortec 7400", 100cc chambers1048705277-90ovalOPEN366T1236339196-upovalOPENBowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI, 110cc chamber1236340196-uprectOPENBowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI, 118cc chamber1255816201-upoval..CLOSED..Gen.VII,"Vortec 8100", 8.1L, 496, truck1256024198-upoval..CLOSED.."Vortec 7400", 100cc chambers1256293291-95ovalOPENGen.V, truck crate motor, 118cc chambers1256293391-95ovalOPENGen.V, 118cc chambers1256293400-uprectOPENGen.VI 502 Marine1401107769-uprectOPENAluminum, fits MKIV, "C-port" 118cc chamber, also sold as a "solid" head1404486184-96rect.Bowtie, Aluminum, MkIV, "raised runners", 1st design, 105cc chamber1404486196-uprect.Bowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI "raised runners", 2nd design, 115cc chamber1404486184-96rect.Bowtie, Aluminum, MkIV "raw" casting of "861" MKIV 1st design1408104578-87ovalOPEN4541408105285-87ovalOPEN366T, 427T, 454 Truck, Marked "HiPerf"1409235986-90ovalOPEN366T, 427T, Marked "HiPerf"1409236086-90ovalOPEN454 Truck, "peanut" round ports1409618870-71rectOPEN454 service replacement, also used on later Mark IV LS-6, LS-7 and 454 HO crate motors, 116cc chamber1409708891-uprectOPENGen.V 454/502 HO, 118cc chamber2450258597rect.Olds/Chevy, DRCE 2, Pro Stock aluminum, for blocks w/4.900" bore spacing2553440404rect.Olds/Chevy, DRCE 3, Pro Stock, aluminum, for blocks with 4.900" bore spacing, Oval includes both "peanut" (also called "round") ports and large oval ports, Copyright EngineRepairShop.com 2011-2023 Privacy Policy Disclaimer.

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