The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. Carb number is stamped in this location as well as on an identification tag held on with one of the air . Can You Register a Car in a Different Name than on the Title? Cam is in used shape but with little to no wear. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. It is typically located in the center of the cam between the lobes. can you help me to decode this cam . 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 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. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. Is there any way anyone could hp me out? 4226 what kind of camshaft is it. 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. Chevy V8 BBC Block and Head Casting Numbers. For instance, the number for a Toyota 3SGE would be CS 3SGE. Quick View. 25-12. Also there is a Blue dot just under the distributor drive gear. 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. Getting a camshaft can be a burden on many car owners; it works well when you have the right one. 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. The next information engraved on the cam was HR 114. Locate the ID number on the camshaft. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. Crankshaft Identification Use these casting numbers to identify the crankshaft you have. Grind numbers are HR 224/339. cam 5054 i am still searching for "Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of . The grind number is the ever noted number, far and more recognized than the model number. 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. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. CWC is the casting ID for CWC Textron. Using stamped numbers and. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. A DOHC is known as a dual overhead cam. 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. 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. I have a Pontiac camshaft with 960938 number on the backside. CAST3736098. however, depending on how you want to look at it. Hope weve helped you with a little more camshaft knowledge. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. To avoid spinning, roller lifters are lifted together. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! This is the COMPCams equivalent of the Rosetta stone for cam lobes. GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. 14088552 Leave a comment at the end of this post if you cannot find the information you want. These spec are for cam install @108 intake ctr line duration @.050 intake 236 ext 242 lobe lift .3470in .3600 ext lobe selection 112.0 where do I set my timeing for first start ? Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: What are your thoughts on the #5054 or anything else? The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. The LEA is an engine produced by General Motors for a wide variety of compact and midsize vehicles. This will give you the intake centerline. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. Thank, Ray. A native of New Haven, Conn., Floyd Drake III began writing in 1984. Then do the same process with the lobe at 0.050 on the closing side. Chevrolet LS7 Camshaft. . 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. 1014789895-98350.Gen.I crate motor1015955087-953501015955187-953051015955287-953501015955387-953051017438991-94350.LT5, ZR1, DOHC, 32-valve, drvs. Can you tell me the specs on this cam from these numbers? I have a cam I need to Id I need the specs and if its a solid or hydraulic its a ua9450 a4250h11 can someone help me with this I am building this junk yard over night Grease monkey maid 10/4 I need it if possible, I have a bbf429 numbers on rear of cam359356 can you tell me what cam I have. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. 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 recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. Thanks, Your email address will not be published. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. Used on RPO: L86 (1980-1991). At one time they supplied 85% of the blanks in the world. The chevy part number for that cam is 3896929. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. The first three-digit number shows the average duration time of the lobes. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. Reading a Cam Card: Advance Personally, I would trash the cam and go buy a new cam and lifter set that you know what the grind is. You need the measurement of the diameter to compare with the database or any online store IDs. To Develop Good Eye Habits While Driving You Should? Drake studied journalism at Southern Connecticut State University. Camshafts come in a wide array of variations, and Chevrolet has a range of camshafts for different applications, engine sizes and performance specs. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. Roller: 202/206 .403"/.415" Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. CAM 6964 1969 CAMSHAFT ID. Chevy . For the intake centerline method, once the cam is installed and TDC is established on the degree wheel, then roll the cam around until the dial indicator signals maximum lift. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. How to Turn off Daytime Running Lights (Explained), How to Turn Off Headlights While Car is Running. Only show this user. 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. This sometimes is tagged stressing when you can just tell by looking at numbers, but in the absence of a degree when or dial indicator, an analog is required to make your best decision. His work has appeared in the "New Haven Register," Medford's "Mail-Tribune" and the "Ashland Daily Tidings." 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. Its got a great loping idle (big cam?? 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 . (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. order on 8.1L big block engines is different than a normal big block. Match the number to a Chevrolet camshaft part number listing. Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. This an original 1966 283 camshaft casting number is 3732798, hydraulic lifters. Run-out on. 4009f/4024f 68553-06. (Yes or No). A good camshaft cannot be underrated, so you need it to make your engine function well. 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. Step 1 Find the model prefix. In this case, we dont know what the opening and closing points are although you could compare the intake lobe points to an off-the-shelf XFI RPM Hi-Lift cam and probably be pretty close. Once we found the hydraulic roller section, the first column lists each lobe by number. Any advice? GM is recalling seven. Quick View. How Long Does it Take for Oil to Drain Back into the Pan? Stamped numbers are 529506 and 031531. Dec 31, 2009. The markings on end of cam is 300C6 and X6733. 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. 0967 is the last four digits of the GM part number. There are at least 6 different versions as of 11/99. That gives us our first clue where to look for the rest of the numbers. I did a search as well, google and on here. 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. Also a great fitting cam for the earlier 302 or 327 Solid lifter Hi-Po motors used by Corvette, Nova or Camaro. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. Chevy V8 SBC Block and Head Casting Numbers. Step 2 Find the profile or grind number. 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. Trying to find the specs on this camshaft. . Stock GM LS engine cams feature LSA anywhere from 116 to 121 degrees because GM is concerned with creating a very smooth idle. Retired GM employee, John Hinckley, an NCRS Master Judge, explains the one number . In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. I have this in a recent purchase5.3 cast-iron ls engine numbers are256373-18and 32340135Im at a loss..can you please help Jeff?.cheers dave. 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. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. The 8th digit of the VIN. The Chevy part number for that cam is 3896929. 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. 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. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! 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. Information is premium and can save you from errors and spending excessively. If you don't have the VIN, you can still identify the engine by visual inspection if you know what to look for. COMP offers this as a service to anyone who is looking for a custom combination of specs that are not listed as an on-the-shelf cam. * 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. It's a used cam and it has this barcode on it. Thanks, Mike. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. That particular cam put my son's pump-gas 406" SB Chevelle to an 11.80 E.T. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. For online resources, check out NastyZ28.com, Kendrick-Auto.com or Chevy-Camaro.com which have detailed listings, or contact a Chevrolet parts department to identify the camshaft. If we didn't already know this was an LS cam, the first thing we would want to do is determine the engine [], it seems like you can barely write,you need education, I bought pair of cams for my 99 mustang 4.6 i was told they are stage 2 cams but i wanted to be sure before taking old ones off can u please help me identify them will they improve my pony thank u very much sir. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. intake and 1.72 in. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. I was pretty careful with the float settings etc and it fired right up when put back on! PG,63 4WD 1st series. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. View (5) $203.95 More Info. engine P/N 10185058. 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. 210/218 at 0.551/0.556 at 113 degrees . 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. Canadian made ERTEL brand. Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? Different chamber volumes, port volumes, port locations, valve sizes, etc. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Terms of Service. It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. 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. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883.