gm camshaft identification numbers gm camshaft identification numbers

A call to Comp at 1-800-999-0853 will probably give you some more details. . side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. The next information engraved on the cam was HR 114. (Advanced five degrees; use spring P/N 3970627.) Information is premium and can save you from errors and spending excessively. Check this castingcarefully to determine which features it may have. . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Could someone help me identify these cam numbers ? The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883. We compared these specs to the catalog and because there is no list number on the end of the cam, we will assume this was a custom-ground camshaft. i have a 383 chev engine ibought and would like to know what cam is in it. To Develop Good Eye Habits While Driving You Should? 4009f/4024f 68553-06. How to Start a Car with a Blown Head Gasket (Explained). indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. View (5) $203.95 More Info. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. We would like to thank everyone that has contributed to the data provided on this site. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). Looks to have stock cast iron heads and exhaust. Jeff Smith: First of all, the CC refers to COMP Cams. On the outside there is a Carter AFB 9637 (625CFM) sitting on an Edelbrock manifold. $850.12. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. The prefix consists of five digits and explains the date and the location of the Chevy's manufacture. 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. 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. This will help you get the full details directly from the manufacturing, which requires the model and other factors that need attention. 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. This is what is on the cam, it would not let me past a picture here. side, aluminum10185040Bowtie, aluminum, 45cc chambers, 1st version, symmetrical ports, 263cc intake ports, splayed valves10185040Bowtie, aluminum, 45cc chambers, 2nd version, symmetrical ports, 240cc intake ports, splayed valves1020524593350.Gen.II LT1, aluminum, reverse flow cooling, 175/68cc port volumes1020764394-96350.Gen.II LT1, aluminum, reverse flow cooling, 175/68cc port volumes1020889094-96265.Gen.II, L99, 4.3 Liter V-8, cast iron, reverse flow1021533997350.Gen.III, LS1, aluminum, 68cc1022512194-95350.LT5, ZR1, DOHC, 32-valve, drvs. The engine also had smaller 1-1/8? 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. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and 0.328-inch lobe lift. 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. The Fora platform includes forum software by XenForo. Re: camshaft identification. How Long Does it Take for Oil to Drain Back into the Pan? It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). 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. Identifiers: Letter R, CWC, EP1, C4 and E8. One of these cams looks unused and the other at best slightly used. If it is an original GM part, these numbers will be there. That particular cam put my son's pump-gas 406" SB Chevelle to an 11.80 E.T. .390 .410 310 320 1.50 in 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. (Yes or No), Will Hub Centric Rings Stop Vibration? A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. (Yes or No). The block casting number on smallblock and big block Chevy V-8 motors is located on a ledge found at the rear of the block, most often on the driver's side. Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. Canadian made ERTEL brand. Run-out on. Stock GM LS engine cams feature LSA anywhere from 116 to 121 degrees because GM is concerned with creating a very smooth idle. Anyone know whos cam this is. 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. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. Match the number to a Chevrolet camshaft part number listing. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. 1014789895-98350.Gen.I crate motor1015955087-953501015955187-953051015955287-953501015955387-953051017438991-94350.LT5, ZR1, DOHC, 32-valve, drvs. 1 BTC 42 ABC 223 30 BTC 80 ABC 290 .298 .447 114 1.5 HYD EXH. 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. Analog system. 10186060 Hydraulic Flat Tappet "454". They include: Identifying with your eye. This type allows more direct airflow through the engine without having to deal with obstruction. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. Many camshaft number reference sites exist online for V8 engines, but determining the camshaft specs for six- and four-cylinder engines may require contacting a Chevrolet parts department. 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. Apr 13, 2014 Yeah, it has CR 760 stamped on the back, and then a date under it. Quick View. ). Chevy V8 "W" Motor 348-409 Casting Numbers. This number should be on your camshaft, followed by a number of degrees. It is an eight or nine-digit number. Each family of cam lobes has its own numerical designation with the same basic configuration, usually encompassing multiple individual durations that also might include changes in lobe lift. It has a taper inside the lobe which ensures the lifter can spin. (Yes or No). The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. Which cam are you refering to that helped your son achieve 11.80? I have a fessler roller cam trying to identify the grind specs. This advances the intake centerline by that number of degrees. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Can You Register a Car with a Bill of Sale and No Title? A stamp is not a functioning part of a camshaft. with Jeff Smith: How to Decode a COMP Cams http://www.onallcylinders.com/Jeff Smith: First of all, the CC refers to COMP Cams. First Generation Camaro Info and Tech - 1967-1969. ZL-1, 2nd version, Mark IV3955270.427.692 or 4 bolt3955272.396.692 or 4 bolt3955274.366T68-854-bolt3955276.427T68-734-bolt3963512.427.692 or 4 bolt3963512.454.70-762 or 4 bolt3969852.366T68-844-bolt3969854.396.692 or 4 bolt3969854.402.70-722 or 4 bolt3969858.427T68-844-bolt3999289.454.71-792 or 4 bolt, some "CE" replacement blocks had four bolt main caps3999290.396.68-692 or 4 bolt, Truck3999290.402.70-722 or 4 bolt, Truck3999290.402.722 or 4 bolt, Passenger3999293.366T68-904-bolt3999294.427T68-844-bolt100511074544-bolt, Bowtie, MkIV, 9.8" deck, siamesed bores, 4.25" semi-finished bores, can be bored to 4.50"10069282366T90-914-bolt, Mark IV, Tall deck10069284427T..4-bolt, Mark IV, Tall deck10069286454.90-914-bolt, Mark IV, Short deck10114182454.91-up4-bolt, Gen.V10114183366T91-up4-bolt, Gen.V10114184427T91-up4-bolt, Gen.V10134366454T..4-bolt, Bowtie, Gen.V, Tall deck101850504544-bolt, Bowtie, Gen.V, Short deck10237297454.96-up4-bolt, Vortec 7400", "L-29" Gen.VI10237299427T96-up4-bolt, Gen.VI, 7.0L, truck10237300502.96-up4-bolt, Gen.VI, 4.466" bore12550312427T96-up4-bolt, Gen.VI, 4.250" bore, fuel pump boss, clutch linkage pivot boss12550313454.91-up4-bolt, Gen.V crate motor, Gen. VI 4.25" bare block, fuel pump boss12556110496.01-up4-bolt, Gen.VII 8.1L, "Vortec 8100", Truck12561357454.96-up4-bolt, Gen.VI125613585024-bolt, Gen. VI14015443454.87-902 or 4-bolt, Mark IV, Truck, Motorhome14015445454.78-902 or 4 bolt14044807454T..4-bolt, Bowtie, MkIV, CNC prep, Tall deck, 4.25" bore or 4.495" bores, 191659554541996-2001 L29140968595024-bolt, Gen.V, HO245025044544-bolt, Bowtie, Gen.V, Race prep, 9.8 "short" deck height24502506454T..4-bolt, Bowtie, Gen.V, Race prep, 10.2 "tall" deck height245025724-bolt, 4.5" bore Olds DRCE 2, 9.5" deck height255344024-bolt, 4.590" bore Olds DRCE 3, 9.25" deck height.