gm camshaft identification numbers

Reading a Cam Card: Advance My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. It would take some digging and some research, but you could look through a parts catalog of some of the more popular cam manufacturers and see if you can match up part numbers with something. Drake studied journalism at Southern Connecticut State University. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. 14088552 Leave a comment at the end of this post if you cannot find the information you want. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. back of cam has 660 371079 front of cam has s42008L, i have a 572 hemi and i am in the process of pulling the cam but the harmonic damper is being a pain . 52.01.07 We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. Step 2 Locate the ID number on the camshaft. Im looking into a cam to suit small block ford. The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. I have a Pontiac camshaft with 960938 number on the backside. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883. Learn how your comment data is processed. i have a 383 chev engine ibought and would like to know what cam is in it. If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. Different chamber volumes, port volumes, port locations, valve sizes, etc. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. The suffix provides the. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. Any help much appreciated. How to Catch Someone Putting Nails in Your Tires (5 Best Ways), Method 2: You can Identify with Stamp Numbers, what to do after replacing your camshaft sensor in your car. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. 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. Some enthusiasts just compare the opening and closing points of the intake with the cam card but this isnt as reliable as the intake centerline method. (Advanced five degrees; use spring P/N 3970627.) I have Comp Cams camshaft. Each number has a meaning and an interpretation. That number is actually the casting number of the camshaft, not the part number. I have a fessler roller cam trying to identify the grind specs. For a better experience, please enable JavaScript in your browser before proceeding. Understanding Cam Design. That gives us our first clue where to look for the rest of the numbers. All of these applications had the same specs as the initial 1967 application. A roller camshaft has its wheel attached to the bottom of the lifters body. CAST3736098. CWC is the casting ID for CWC Textron. 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. It is typically located in the center of the cam between the lobes. Do You Get a Ticket in the Mail for Passing a School Bus? side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. This type allows more direct airflow through the engine without having to deal with obstruction. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. From the distribute drive gear down are the folloing markings: CWC, 06, C14, EP1. This is an involved process, requiring the removal of the engine's front end. JAMSI is a trusted source of automotive engine parts. Stamp numbers are engraved by the manufacturers to monitor production and distribution. How Long Does it Take Transmission Fluid to Circulate? This was one of the best selling/most popular cams through the years past! Visit www.jamsionline.com to shop today. I suspect you have . ZL-1, Mark IV3946053.427.97-up4-bolt, Alum. Thank you ,This has been very helpful. The Vehicle's Service Parts Identification Label Will Have The VIN Digit and Engine RPO Code (Circled) To Confirm Engine Application Gen III LS Engine Car Applications 1997 to 2004 Corvette, 1998 to 2002 Camaro & Firebird, 2004 GTO: 5.7L LS1 2001-2004 Corvette, 2004-2005 Cadillac CTS-V: 5.7L LS6 Gen III LS Engine Truck Applications: Anyone have any idea what make and specs are of this cam? 0967 is the last four digits of the GM part number. All of these applications had the same specs as the initial 1967 application. Why are Volkswagen Oil Changes so Expensive? 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. 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. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. Can I Drive my Mercedes With Check Engine Light On? Can You Register a Car in a Different Name than on the Title? The next information engraved on the cam was HR 114. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . They are widely used and they perform well, which is more affordable than a roller cam. Despite the differences, however, an 8.1L camshaft will drop right into a 454 like it belongs there - but it will only run four cylinders. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. Roller: 202/206 .403"/.415" The first three-digit number shows the average duration time of the lobes. DOHC is a production to improve the volumetric of the internal combustion engine in which it has more power than a simple overhead cam. $799.00 +$36.00 shipping. no idea) and only pulls about 10psi vac at idle. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: 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. (Yes or No). All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. It's a used cam and it has this barcode on it. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. The Chevrolet small-block engine is a series of gasoline-powered, V-8 automobile engines, produced by the Chevrolet division of General Motors between 1954 and 2003, using the same basic engine block.Referred to as a "small-block" for its size relative to the physically much larger Chevrolet big-block engines, the small block family spanned from 262 cu in (4.3 L) to 400 cu in (6.6 L) in . BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust IP = Intake runner volume OVAL PORT - Valve size 2.06 intake, 1.72 exhaust BBC Camshaft Part Numbers Note 1: 80 deg overlap, 396 375hp L-78/L-89, 427 425/435hp L-71/L-72, 454 450hp LS-6, HP streetof engines we now know as Small Block Chevys. 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. Hi, I have a cam that trying to figure out the specs on. There are two types of cams that you can tell the difference without using a lens or going the extra mile to tell the difference. Chevy Intake Manifolds The chevy part number for that cam is 3896929. One of these cams looks unused and the other at best slightly used. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 Retired GM employee, John Hinckley, an NCRS Master Judge, explains the one number . Step 3 Match the number to a Chevrolet camshaft part number listing. It is a mode of identification used by manufacturers. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. GM is recalling seven. Match the number to a Chevrolet camshaft part number listing. i have a 383 chev engine ibought and would like to know what cam is in it. The Fora platform includes forum software by XenForo. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. * 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. Answer (1 of 4): Most common specs for an engine would be for example. Any way to to determine the type of cam from the outside? You need the measurement of the diameter to compare with the database or any online store IDs. Oct 8, 2010 #2 Z z28rod Veteran Member Apr 30, 2009 4,472 hopewell junction,ny Getting a camshaft can be a burden on many car owners; it works well when you have the right one. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. This is the COMPCams equivalent of the Rosetta stone for cam lobes. Privacy Policy. How Long Does it Take for Oil to Drain Back into the Pan? Chevy V8 Crankshaft Casting Numbers. 1995 Chevrolet C1500 5.7L - obd1 - service engine code 32 - replaced map sensor and cleared codes but continues to throw code that map sensor has low voltage. Does Your License and Registration Address Have to Match? They dont add to the function of the camshaft itself. Speed isnt a problem with a dual camshaft and it increases the engines power. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. It doesn't indicate a different cam or an earlier or later version. A stamp is not a functioning part of a camshaft. My 1968 Camaro Site. Lift of tested lobe could be .300" before wear. In 1971 he installed a 1965 Corvette fuel injection system. A native of New Haven, Conn., Floyd Drake III began writing in 1984. The 3709/3711 numbers are references to lobe designs. The numbers are just figures a manufacturer uses to identify their products and to track them sometimes. 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. The pushrods cam stays above the cylinder, which is always above the combustion chamber. Can a Bad Battery Cause a Check Engine Light to Come On? There are two easy ways: 1. .390 .410 310 320 1.50 in 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. Used on RPO: L86 (1980-1991). Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. E I have 3.55 geArs and a 3600 stall. .390 .410 310 320 1.50 In 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. I can't help you in regards to who actually did the final grinding. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. How to Get a California Drivers License with an Out of State License, Can You Register a Car Online in Florida? side, aluminum1023990296-up350.Gen.II LT4, aluminum, reverse flow cooling, 195cc port, 54.4cc chamber, angle plug1023990696-up350."Vortec 5700", "L31", 64cc chamber, 170cc intake port, 1.94"/1.5" valves1236771299-up."Fast Burn", aluminum, 210cc intake,port, 2.00/1.55 valves, 62cc chamber1236771399-up."Fast Burn" used on ZZ430 crate motor, aluminum, 210cc intake port, 2.00/1.55 valves, 62cc chamber124800052000..LS1 "GTZ", aluminum, 38cc, 2.125"/1.625" valves, angle plug1248001197-up.Bowtie "SB2.2", aluminum, 2nd version of "SB2", 48cc chambers, "mirror ports", revised valve angles & plug location1250645087-953501250985987-943051251685287-953501252974295-96265.Gen.II, "L99", cast iron1255156196350.Gen.II, "LT1", aluminum1255252097-up305.Vortec, truck1255429094-96350.Gen.II, "LT1", cast iron version, used on "9C1" Police package, Impala SS, Cadillac Fleetwood, Buick Roadmaster reverse flow cooling1255429195-96265.Gen.II, "L99", cast iron1255569096350.Gen.II, "LT4", aluminum1255674399325.Gen.III, 5.3L, aluminum, truck, van1255805997305.Vortec, truck, 1.84"/1.5" valves1255806298350.L31 Vortec, truck, 64cc chambers, 1.94/1.5, 170cc intake port1255880697-98350.Gen.III, "LS1", aluminum, 68cc1255985399-up350.Gen.III, "LS1", aluminum, 68cc1255986299-00.Gen.III, aluminum 4.8/5.3L1255989500-up325.Gen.III, aluminum, Vortec 5.3L1256170601-04.Gen.III, 5.3L, aluminum1256187399-01364.Gen.III, 71cc, iron1256231701-04364.Gen.III, 71cc, aluminum1256424100-up350.Gen.III, "LS1", aluminum, 68cc1256424301-up350/364Gen.III, "LS6", "LS2", aluminum1257203501-04364.Gen.III, 6.0L, aluminum, 71cc1400885679-812671401020182-8530514011034Bowtie, cast iron, 64cc chambers, 184cc port volume, angle plug, "Phase II" head14011049Bowtie, aluminum, 55cc chambers, angle plug, 180cc ports, "Phase 6"1401108355-86350.Crate motor for years indicated. This is a COMP Cams timing card. Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. 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. side, aluminum1011081091-up350.Gen. 1, 65cc chambers1012092887-953501012532094-96350.Gen.II LT1, cast iron version, used on "9C1" Police package, Impala SS, Cadillac Fleetwood, Buick Roadmaster reverse flow cooling 1012837492-up350.Gen.II LT1, 53cc, angle plug, aluminum, reverse flow cooling, 175/68cc ports10134352Bowtie, 45cc, angle plug, "low" port, 223cc intake port,aluminum, 18' race head10134363NOTE: This casting # has been used in many different versions of this aluminum 18' and 15' Bowtie race head. JavaScript is disabled. Four or six-cylinder can be attached to the valves. I dont have any numbers. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . JavaScript is disabled. No smoke, but I have not checked compression yet. The cam is in very good used condition and will likely be reused. Show More Show Less. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. A DOHC is known as a dual overhead cam. can you help me to decode this cam . 330864: 1968 through 1991 oval port, open chamber, 2.06 in. Cheers Bart, I have a cam that is stamped K 7 THEN ABOVE IT IS 1264 321 7273 WHAT DO I HAVE ITS NEW IN BUBBLE WRAP. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. The best way to identify an unknown camshaft is by identifying it with your eye or using stamped numbers engraved on the camshaft to identify it. 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.

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gm camshaft identification numbers