gm camshaft identification numbers gm camshaft identification numbers

The HI-PO color coded stripes on the camshaft end are green, orange and red. 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. [] Ask Away! by Greenlight Mon Nov 10, 2014 6:56 pm. The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. We have a hint because if a camshaft if ground with no added advance, the intake lobe centerline will be the same number as the LSA114 degrees After Top Dead Center (ATDC). Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. 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. Do not enter the -2 on dual cams part numbers or the (I) that indicates intake or (E) for exhaust. 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. .390 .410 310 320 1.50 in 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. Stamped on end is Z099, also has three pink dots above that stamping. Chevy V8 SBC Block and Head Casting Numbers. I bought a 34 Ford pickup with a 302 installed. 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. The engine needs to function by opening the valve with the help of the camshaft. Then do the same process with the lobe at 0.050 on the closing side. (Yes or No). It models the airflow for the computer to calculate fuel. I can't help you in regards to who actually did the final grinding. This card reveals the basic information you need to identify, properly install, and degree the camshaft in the engine. This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H.O. Quick View. But this comes at the cost of reduced torque in the middle of the rpm band. The only thing we dont know from these number is the cams intake centerline. Now he serves as a regular contributor to OnAllCylinders. . That gives us our first clue where to look for the rest of the numbers. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. Your email address will not be published. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. This figure is derived by adding the intake center line plus the exhaust center line and dividing by two. Contact. So why did this cam not have a lope to it in the 283, from everything I am reading long . (Advanced five degrees; use spring P/N 3970627.) CAM 6964 1969 CAMSHAFT ID. 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. It was later decided to build a supercharged version of the LS3 and it has less compression at 9:1:1 to run safer under boost. 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. A Solid Lifter Camshaft for 1970 1971 and 1972 Camaro Z28 or Corvette with the 350 LT1 Small Block Motor. How does this compare to the 69 dz 30/30/ cam? were used. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. 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. How Long Does it Take Transmission Fluid to Circulate? 2. 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. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and 0.328-inch lobe lift. 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. 4226 what kind of camshaft is it. I purchased a used hydraulic roller camshaft from a friend that was originally used in an LS1 engine. Car AC Compressor Not Turning On (Causes and Quick Fix). All of these applications had the same specs as the initial 1967 application. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. 25-12. Looks to have stock cast iron heads and exhaust. Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. And there is a CR inscribed as well off the lower left Stamp numbers are engraved by the manufacturers to monitor production and distribution. This is what is on the cam, it would not let me past a picture here. This is a job for professionals and the mechanically-inclined. It is a mode of identification used by manufacturers. My 1968 Camaro Site. On the shaft the #'s 1539 are stamped in one spot, and CWC is stamped in another spot. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. Step 2 Locate the ID number on the camshaft. Once we found the hydraulic roller section, the first column lists each lobe by number. The Chevy part number for that cam is 3896929. 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. Their outer look tells the difference. Drake studied journalism at Southern Connecticut State University. It is typically located in the center of the cam between the lobes. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. The identification number consists of a seven-to-eight digit code. Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . The numbers engraved in the body part of the camshaft are called the Stamped number or casting number. I have a Street Performance comp cam that was purchased in 2007. Stamped numbers are 529506 and 031531. I was pretty careful with the float settings etc and it fired right up when put back on! In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. The Fora platform includes forum software by XenForo. cam 5054 i am still searching for "Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of . 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. Anyone know whos cam this is. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. Thank you in advance, Gday mate trying to decipher this comp cam to no avail, # 2-018b 1295 3106-rb 046987 any help on duration and lift lobe centre and rev range would be greatly appreciated. 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. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). Roller: 202/206 .403"/.415" In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Answer (1 of 4): Most common specs for an engine would be for example. They include: Identifying with your eye. Grind numbers are HR 224/339. Run-out on. Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Any help much appreciated. A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. 1 BTC 42 ABC 223 30 BTC 80 ABC 290 .298 .447 114 1.5 HYD EXH. I actually went through several lists and made some corrections before making this list. The 8.1L FO is 1-8-7-2-6-5-4-3 where a 454/7.4L is 1-8-4-3-6-5-7-2 as seen in Figure 1. You can basically find it in the center of the cam between the lobes. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. This type allows more direct airflow through the engine without having to deal with obstruction. They are not so much of the speeding type. Only show this user. Thanks for any info I Think its a crane cam but I cant match the stamped numbers anywhere. 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. A good camshaft cannot be underrated, so you need it to make your engine function well. Can a Bad Battery Cause a Check Engine Light to Come On? 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. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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. order on 8.1L big block engines is different than a normal big block. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . 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. Can I Drive my Mercedes With Check Engine Light On? Thanks, Your email address will not be published. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. Show More Show Less. ZL-1, Mark IV3946053.427.97-up4-bolt, Alum. There are 3 different ways to select your camshaft tightly. Identifiers: Letter R, CWC, EP1, C4 and E8. 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. 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. Can a Wheel Speed Sensor Cause Limp Mode? I have more than 4 Camaro's am I Addicted? motor could have casting number 10112391 or 10112391S that is the service replacement. One thing I"m trying to figure out is if the orig cam is still in the car. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. CAM 6930 1967 CAMSHAFT ID. Any time you are making this kind of important decision about your engine, it's . The Fora platform includes forum software by XenForo. You need the measurement of the diameter to compare with the database or any online store IDs. Thanks, Gary in N.Y. P.S. To Develop Good Eye Habits While Driving You Should? 4009f/4024f 68553-06. Does OnStar Keep Location History? A good understanding of these factors will assist you in making a wise decision. The markings on end of cam is 300C6 and X6733. I have a new cam was told it was a comp cam # 1136 230780 any ideas on cam specks. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. By visual inspection. With your cam it might come out to somewhere between 114 to 110 degrees depending on if the cam was machined with advance. They minimize friction, which ensures the camshaft contains more power. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. 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. How to Start a Car with a Blown Head Gasket (Explained). Apr 13, 2014 Yeah, it has CR 760 stamped on the back, and then a date under it. 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. Can You Register a Car in a Different Name than on the Title? There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. Why are Volkswagen Oil Changes so Expensive? No smoke, but I have not checked compression yet. A roller camshaft has its wheel attached to the bottom of the lifters body. There are at least 6 different versions as of 11/99. Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. You can make a sure bet by just selecting randomly but your engine life will be in big problem. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. This advances the intake centerline by that number of degrees. Can You Register a Car with a Bill of Sale and No Title? In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. Less overlap generally produces a more stable idle while more overlap makes the idle lumpier. The "2182" Casting number identifies this camshaft as GM part number 3972182. The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. . 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.