gm camshaft identification numbers

For a better experience, please enable JavaScript in your browser before proceeding. Chevy . How to Turn off Daytime Running Lights (Explained), How to Turn Off Headlights While Car is Running. i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. It doesnt add to the function of the camshaft, nor does it play an important role. Thanks, Your email address will not be published. Using stamped numbers and. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. If you want to know where the intake centerline is located, all you have to do is install the cam in the engine and then degree the cam. The second lobe number 3711 refers to the same family of lobesthis one specd at 269 degrees advertised with 216 degrees at 0.050-inch tappet lift with a lobe lift of 0.330 and a theoretical valve lift of 0.561-inch. 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. force 120hz android The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.4 and 2.5 litres. Chevy V8 Casting Number Locations. Once we found the hydraulic roller section, the first column lists each lobe by number. Stamped numbers are 529506 and 031531. 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. 1 BTC 42 ABC 223 30 BTC 80 ABC 290 .298 .447 114 1.5 HYD EXH. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. Thanks, Gary in N.Y. P.S. 10186060 Hydraulic Flat Tappet "454". p/n 12560967, .466/.457, 191/190, 114 LSA. The cam is in very good used condition and will likely be reused. On the outside there is a Carter AFB 9637 (625CFM) sitting on an Edelbrock manifold. 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. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. For instance, if you have numbers like 266H04, the last two digits are the numbers used to show the measurement of the lobes. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. Information is premium and can save you from errors and spending excessively. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. Under that heading toward the bottom we found a tab for the Cam Lobe Master Catalog. The Chevy part number for that cam is 3896929. can you help me to decode this cam . 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 ? The Chevy part number for that cam is 3896929. . (You must log in or sign up to reply here. Grind numbers are HR 224/339. Contact. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. It's a 10168588 casting that had the numbers "4.3" cast on the side, too. GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. So why did this cam not have a lope to it in the 283, from everything I am reading long . Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. This is a job for professionals and the mechanically-inclined. COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM. The markings on end of cam is 300C6 and X6733. If you are looking for the actual Chevy engine codes that are stamped into the block during assembly, Nasty Z-28.com has an excellent block stamping number decoder. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. COMPCams uses two-number designations for all its engine families. A good understanding of these factors will assist you in making a wise decision. The Fora platform includes forum software by XenForo. $850.12. Can you tell me the specs on this cam from these numbers? 4226 what kind of camshaft is it. . The only stamped markings on the front are 951758. Can you guys help me pick a cam and fix my combo? The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. It models the airflow for the computer to calculate fuel. Thank you ,This has been very helpful. And there is a CR inscribed as well off the lower left For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. intake and 1.72 in. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. We have it in internal combustion engines and some electric motor speed controllers. Any time you are making this kind of important decision about your engine, it's . The numbers on it are, 3734R/3377R, HR13, I 3996-06. Answer (1 of 4): Most common specs for an engine would be for example. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. The LS . 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. 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. They dont add to the function of the camshaft itself. The 3709/3711 numbers are references to lobe designs. Show More Show Less. Communication Number: ServiceManual Trucks Group36 VehicleElectronicControlUnit(MID144)DiagnosticTrouble Code(DTC),Guide Frombuilddate1.2007 PV776-88948891that a fault has occurred by illumination a malfunction indicator lamp and a message in the driver information display, if equipped. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . This same pattern was followed throughout the 1997 production cycle. They include: Identifying with your eye. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! 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. indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. 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 . I dont have any numbers. 1014789895-98350.Gen.I crate motor1015955087-953501015955187-953051015955287-953501015955387-953051017438991-94350.LT5, ZR1, DOHC, 32-valve, drvs. 4270 H11 then letters CC vertically, then CB6554 can you tell me the specs on this cam? The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. Does Your License and Registration Address Have to Match? Any help much appreciated. Step 2 Find the profile or grind number. 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. They are not flat, and they are recognized with a slight crown on the face. On other cams Ive looked at, they just list the part number which is easy to look up, but this cam has a bunch of numbers I dont recognize. Is there any way anyone could hp me out? Could someone help me identify these cam numbers ? I just rebuilt the carb as it was pretty dirty and leaked at the accel pump. 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. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. 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. A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. It is typically located in the center of the cam between the lobes. A good camshaft cannot be underrated, so you need it to make your engine function well. It's for a 99-04 truck. Less overlap generally produces a more stable idle while more overlap makes the idle lumpier. motor could have casting number 10112391 or 10112391S that is the service replacement. A SOHC allows at least 2 to 3 valves per cylinder configuration, with more manufacturer prowess. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. That number is actually the casting number of the camshaft, not the part number. cam 5054 i am still searching for "Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of . 366298.4Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal. If it is an original GM part, these numbers will be there. PG,63 4WD 1st series. Ford Au part no ! We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. Getting a camshaft can be a burden on many car owners; it works well when you have the right one. 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . I have no idea whats on the inside. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. Crane makes Blueprint camshafts for almost, if not, every GM, Ford, Mopar engine from the sixties and seventies. I bought a 34 Ford pickup with a 302 installed. 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. Check this castingcarefully to determine which features it may have. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. To obtain specifications on a Crower cam please enter the part number (00242, 15210, etc) or custom work order number (E23456, A7890, etc) located on the end of the camshaft. Compare Related Articles. GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. . A call to Comp at 1-800-999-0853 will probably give you some more details. They are widely used and they perform well, which is more affordable than a roller cam. 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. 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. eBay Product ID (ePID) 2320190292. Old school Comp 9000 Mallory Distributor and coil. The "2182" Casting number identifies this camshaft as GM part number 3972182. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. (Yes or No). Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. 2. All of these applications had the same specs as the initial 1967 application. GM 6930 , 6964 and 5054. 4485B 4391B HR112+4 R (with a line under the R ) then CC and at the bottom G1979-14. It is a mode of identification used by manufacturers. Analog system. This method requires you to do a few tasks like measuring some diameters and comparing them to the database. Any advice? CWC is the casting ID for CWC Textron. The HR refers to this as a hydraulic roller camshaft while the 114 refers to the lobe separation angle (LSA). Can I Drive my Mercedes With Check Engine Light On? Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. It doesn't indicate a different cam or an earlier or later version. How to Start a Car with a Blown Head Gasket (Explained). E In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Melling listings include OEM applications to match the engine requirements desired including horsepower, economy and needed engine torque. (Yes or No), Will Hub Centric Rings Stop Vibration? Their outer look tells the difference. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. After working as a reporter in Oregon, he is now based back home in New Haven. If you don't have the VIN, you can still identify the engine by visual inspection if you know what to look for. Lift of tested lobe could be .300" before wear. I tried searching & googling these markings with no luck. JavaScript is disabled. I have verified this information with a degree wheel and a dial indicator, 300 degrees @ 0.006 lift, 250 degrees @ 0.050 lift, lift is 0.266 or 0.399 at valve, and LSA of 11.5. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Can a Wheel Speed Sensor Cause Limp Mode? The identification number consists of a seven-to-eight digit code. Thanks, Mike. Mon to Fri: 8am - 5pm CDT; Gandrud Chevrolet 919 Auto Plaza Dr. Green Bay, WI 54302; Sales: 888.284.7491 performance@gandrud.com; Contact Us; Connect With Us This type allows more direct airflow through the engine without having to deal with obstruction. Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. Stamp numbers are engraved by the manufacturers to monitor production and distribution. There are 3 different ways to select your camshaft tightly. the 4.3L LT1 was also referred to as the L99 (not to be confused with the LS variant bearing the same name) Can You Register a Car in a Different Name than on the Title? Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. The greater number of degrees means there is less overlap between the intake and exhaust lobes. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 This will help you get the full details directly from the manufacturing, which requires the model and other factors that need attention. On the home page, we looked for the Information tab and then clicked on Catalogs. A roller camshaft has its wheel attached to the bottom of the lifters body. Terms of Service. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. To Develop Good Eye Habits While Driving You Should? Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! Match the number to a Chevrolet camshaft part number listing. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. Any info helps, or where I can find. The grind number is the ever noted number, far and more recognized than the model number. My 1968 Camaro Site. It is typically located in the center of the cam between the lobes. My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. The HI-PO color coded stripes on the camshaft end are green, orange and red. (adsbygoogle = window.adsbygoogle || []).push({}); AutomobTips is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, Copyright 2022 - AUTOMOBTIPS | Auto Blog, Our website uses cookies to improve your experience. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. 139536 93B2B, I have a solid roller cam has cc 950 k5462 r6 292-5 296-6 stamped on front help with specs, I am just trying to decode the cam out of my 400m. 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: All of these applications had the same specs as the initial 1967 application. The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. Can You Register a Car with a Bill of Sale and No Title? From the distribute drive gear down are the folloing markings: CWC, 06, C14, EP1. How Long Does it Take to Replace a Catalytic Converter? You need the measurement of the diameter to compare with the database or any online store IDs. Understanding Cam Design. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. There are 3 different ways to select your camshaft tightly. This number should be on your camshaft, followed by a number of degrees. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. How Long Does it Take for Oil to Drain Back into the Pan? In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. however, depending on how you want to look at it. $510.45. No smoke, but I have not checked compression yet. Stock GM LS engine cams feature LSA anywhere from 116 to 121 degrees because GM is concerned with creating a very smooth idle. 366299.4Bowtie, Aluminum, nodular iron splayed caps, wet sump, 4.00" bore389257..302..67.2393288..28365-672460703..350..78.4460776..30578-792460777..30578-792460778..30578-792 or 4, some Canadian assembled heavy duty truck blocks have 4-bolt main caps471511..26779-8223556519.28358-6123703524.265..55.2No oil filter3720991.26556-5723731548.265572No side motor mounts3731548.283572No side motor mounts3737739.28358-6423756519.28358-6223782870.32762-6723789817.28362-6423789817.32762-6723789935.28361-6423790721.28362-642Chevy II recessed oil filter boss3790721.32765-662Chevy II recessed oil filter boss3791362.32762-672Chevy II recessed oil filter boss3792563.327..65.23792582.28364-6523794226.28358-6323794460.32762-6423830944.327..63.23834810.28364-6623834812.28362-6323837739.28358-6223849852.28357-6623849935.28365-6723858174.32764-6723858180.32764-6723858618.35068-7623862194.28365-672Chevy II recessed oil filter boss3862812.28362-6423892657.302..67.2Z-28 Camaro3892657.327..67.23892657.350..67.2Camaro3896944.28366-6723896948.28366-6723903352.327..67.23914636.307..68.23914638.307..68.23914653.30768-7323914660.327..68.23914678.302..68.2Z-28 Camaro3914678.327..68.23914678.350..68.23931174.307..68.2Truck3932371.30769-7323932373.30768-7323932386.302..69.4Z-28 Camaro3932386.327..69.23932386.350..69.2 or 43932388.327..69.23932388.350..69.2 or 43933180.32768-6923951509.40070-7143951509.40074-8023951511.40070-734Some replacement blocks had 2-bolt main caps3956618.302..69.4Z-28 Camaro3956618.32768-6923956618.350..69.2 or 43956632.307..69.23959512.32762-672Was also used for some "CE" replacement blocks3959532.283642Used for some "CE" replacement blocks3959538.327..2Chevy II recessed oil filter boss, Used for some Chevy II "CE" replacement blocks3970010.302..69.4Z-28 Camaro3970010.327..69.2Trucks and industrial3970010.35069-802 or 43970014.35070-762 or 43970020.30769-7323970024.30769-7324715111.305..80.26259425.35069-762, 95509..400.762 bolt have only seen one10036033350..4Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico"10046164305..86.210049804..4Aluminum, Pontiac Super Duty version of Gen.I SBC, 4.00" bore, 350 mains, 2-piece rear seal, splayed caps, GTP race block10051182..2 or 4Bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal10051184..4Bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal1005472735086-up2 or 4one piece rear seal, some "Made in Canada"10066036350..2 or 4Target Master/Goodwrench crate motor, 2-piece rear, seal, "Hecho en Mexico"10066038350..92.4Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico"10090511350..90.2LT-5, ZR1 Vette, 375hp1012532735092-up2 or 4Gen.II LT-1, reverse flow cooling1012532735096-up2 or 4Gen.II LT-4, reverse flow cooling10134398..4Bowtie, Aluminum, 4.125" bore, 2.65" main journals10134996..4Bowtie, Aluminum, 4.125" bore 2.65" main journals1015355835091-924LT-5, ZR1 Vette, 375hp1016858826594-962L99, Gen.II, 4.3 Liter V-8, Caprice, reverse flow cooling1019900135093-954LT-5, ZR1 Vette, 405hp1024387830596-982Vortec truck, roller cam, one-piece rear seal1024388035095-002 or 4Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal1255059235097-upcrossbolted block, Gen.III, "LS1", aluminum1255135899-upGen.III, 4.8L or 5.3L, cast iron, truck1255136436498-04crossbolted cast iron Gen. III, 6.0L, truck1255937835099-upcrossbolted block, Gen.III, "LS1", aluminum1255984635098-upcrossbolted block, Gen.III, "LS1", aluminum1256062135098-upcrossbolted block, Gen.III, "LS1", aluminum1256062635099-upcrossbolted block, Gen.III, "LS1", aluminum1256062935099crossbolted block, Gen.III, "LS1", aluminum1256116835001-upcrossbolted block, Gen.III, "LS1", aluminum1256217435098-upcrossbolted block, Gen.III, "LS1", aluminum1256895236405-upcrossbolted block, Gen.III, 6.0L, aluminum, LS21256691032504-upcrossbolted block, Gen.III, 5.3L, aluminum, SSR truck1257104832504-upcrossbolted block, Gen.III, 5.3L1257358136498-04crossbolted cast iron, Gen.III, 6.0L, truck1257718436498-04crossbolted cast iron, Gen.III, 6.0L, truck1257739602-upGen.III, 4.8L or 5.3L, cast iron, truck1401020130580-8521401020230580-8521401020330580-8521401020735080-852 or 41401020935080-852 or 41401028026779-822140110643508341401114835087-89.Roller cam, one-piece rear seal1401637626779-8221401637935077-792 or 41401638130580-8421401638230579-8421401638330580-852Truck1407928735086-90.Truck1408852635087-89.Roller cam, one-piece rear seal1408854835086-882 or 41408855130586-872one-piece rear main seal1409362730587-942Roller or flat tappet cam, one-piece rear seal1409363835087-952 or 4Roller or flat tappet cam, one-piece rear seal1409476630586-up2One-piece rear seal1410114730585-up21410114835086-904One-piece rear seal1410205830587-912Roller cam, one-piece rear seal22551656..4Chevy/Olds Rocket block, 4.00"-4.190" bores, 2.45" main journal sizes, splayed caps, dry sump, 2-piece rear seal, 9.025" deck22551660..4Chevy/Olds Rocket block, 4.00"-4.190" bores, 400 mains journal sizes, splayed steel caps, wet sump, raised cam 2-piece rear seal, 9.300" deck.

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gm camshaft identification numbers