In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. While a simple call to the COMP Cams CAM HELP tech line (1-800-999-0853) and short discussion with one of the highly informed tech line personnel will always get you the right answers, having a little personal knowledge on the topic is always a good idea. 330545..73350.76cc chamber, 2.02/1.60333881..74-75350.76cc chamber, 2.02/1.60333882..74-80350/40076cc chambers340292..70's.Over the counter, angle plug, 64cc chamber354434..75-79262/267/30560cc chambers358741..76-79305376445..77-85350.76cc chamber, small valves376450..75-81262/267/305..6 or 7 exhaust bolt holes, 60cc chamber462614..77-79305.60cc chamber462624..75-86350/40076cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves458642..75-84350.350468642..76-up350/400471513..79267/350517513..79267/3501816887.63283.Made in "Canada", GMC HD truck3636839.552653703523.552653713358.55-562653713569.55-562653725306.562653731539.57283.283 HP FI3731544.57-612833731554.57-622833731556.57283.Truck, Made in Canada3731762.56265.Vette, 2x4 carbs3737775.62-67283/3273740997.57283.1x4, 2x4 & FI (exc.-283hp)3743056.582833743096.62-67327.GMC Truck3747363.57-612833747460.59-67283/32770cc chambers3748770.582833748772.58-612833755537.57-622833755549.57-622833755550.592833755585.62-67327.GMC Truck3767460.59-602833767462.62-673273767465.59-612833767754.59-61283.60cc chambers3767792.60-642833774682.60-64283/32770cc chambers3774684.62-64327.75cc chambers3774692.58-64283.60cc chambers3782461.64-66327Camel hump,no accessory holes,160/62cc port volumes,62cc chamber3782461X60-63283/327..Camel hump,no accessory holes,larger 172/64cc port volumes, 62cc chamber3795896.63-6528360cc chamber3795896.62-6432760cc chamber3798996.63-673273814480.60-67283/327..70cc chambers, 1.72/1.5 valves3814482.62-67283/327/350..75cc chambers3817680.63-67283/3273817681.62-673273817682.61-622833836839.552653836842.57-67283/3273837064.56-62265/2833837065.55-56265.Truck3848720.57-582833876775.60-67283/32775cc chamber3884520.60-67283.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3884520.62-67327.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3890462.66-67302/327/350..Camel hump,no accessory holes,64cc chamber3901068.87-up350.Crate motor, 285hp, 64cc chamber3911032.68307/32770cc chamber3912264.58-622833912265.63-642833912311.65-673273912313.65-673273917290.67-68307/3273917291.67-68302/327/350..Camel hump,no accessory holes,64cc chamber3917292.68327/350Camel hump,64cc chamber3917293.67-68307/32775cc chambers3927185.69-76307/327/350..70cc chambers3927186.69-70302/350Camel hump,64cc chambers,accessory holes3927187.69-70350.Camel hump,64cc chambers,accessory holes3927188.69327.74cc chambers3927188.70307.74cc chambers3931633.68-733073931635.68-763503931638.68327.Truck3932441.69-70350.76cc chambers3932441X69-70350/40080cc chambers3932454.69-733073932454.69-79350.Truck3946812.693503946813.69-79350.Truck3947040.68327."Right angle" casting identifier, 64cc chambers, good HP head,used in trucks, no accessory holes3947041.69-70302/350"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head3947041X69-70302/350"Right angle" casting identifier, 64cc chamber, 165cc intake port, accessory holes, good HP head3951598.70400.76cc chambers39642863503965742.70350.over the counter, angle plug3970126.67-71327/3503973370.69-70350.over the counter in US, Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug3973414.70350.LT1-350/370hp, Camel hump, 64cc chamber3973487.71-72350.1.94/1.5 or 2.02/1.6 valves, was also used on '71 350/330hp LT1, 75cc chamber3973487X71-72350.1.94/1.5 or 2.02/1.6 valves, 75cc chamber3973493.71-72400.76cc chamber3986316.71350.76cc chamber3986336.71350.76cc chamber3986336X71350.76cc chamber3986339.71307/35074cc chamber3986339X71307/35074cc chamber3986388.68-76307/3503991492.70350.LT1,Camel hump,accessory holes,64cc, straight plug3991492.70-up.over the counter,Camel hump,64cc, straight or angle plug3998916.72350.also used w/'72 350 LT1, big valves, screw in studs, 76cc chambers3998920.72-733503998991.72-73307/35075cc chambers3998993.72-73307/35075cc chambers3998993.current..350Goodwrench crate motors,"Hecho en Mexico", 75cc chambers3998997.72-73350/40076cc chambers3998997.78-84305/35076cc chambers4079261.7535010033867Aluminum,over the counterPontiac 23' head,62cc,angle plug, 196cc intake port10045434Over the counter Pontiac 15' head 55cc, angle plug, raised runner aluminum, "roll over" head10051101Bowtie, aluminum, 55cc, angle plug raised runner, 196cc intake port1006520287-95350.Truck1006520387-95350.Truck1006520487-953501006520587-953051006520687-953501006520787-953051008811388-up350.Aluminum, 58cc, angle plug, raised "D" port exhaust, 1.94"/1.5" valves10093328Over the counter, Pontiac 15' head aluminum,224cc ports, 61cc chambers "roll over" head1010617890350.LT5, ZR1, DOHC, 32-valve, pass. The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. $426.78. 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. CAMSHAFT SPECIFICATIONS Part No. It doesn't indicate a different cam or an earlier or later version. (Advanced five degrees; use spring P/N 3970627.) 285/300hp, 64cc chambers, 1.94"/1.5" valves1401441580-85267/3051401441680-86305.1.84"/1.5" valves, 58cc chambers1401444080305.1.84"/1.5" valves1401982180-863501401992479-812671401992680-863501401051680-86350140205178035014020555813051402055681350140220568535014022206803501402230180-863051402260180-86267/3051.72"/1.5" or 1.84"/1.5" valves, 53cc chambers1402280180-8630514024816..350.76cc chambers, 1.94/1.5 valves, Gen.I crate motors1403480678-822671403480778-863051403480880-863501403480896-up350.76cc chambers, 1.94"/1.5" valves, Gen.I Goodwrench crate motors1403481080-86350.Truck1403481180-86350.Truck1403912181-86305.Truck1403912281-86305.Truck1407111480-863501407538180-86350.Truck14079261863501408584480-86350.Truck140859638635014088526..350.Gen.II, LT1, aluminum1408911986-883501409409386-883501409621780-96350.Crate motor, 285hp/300hp, 64cc chambers, 72' or 90' center intake manifold bolt angles1410108187-953051410108387-up350.Gen.I, also used on crate motors, 285 or 300 hp, 64cc chambers, 72' center manifold bolt angles1410112886-87350.Aluminum, 58cc, angle plug1410218787-91305.1.84"/1.5" valves1410219187-up3501410219387-up350.1.94"/1.5" valves22542525Dart/Olds/Chevy aluminum, 14'or 17' race head.2450255996-97.Bowtie, "SB2", 1st version, "mirror ports", aluminum, 196cc port, CNC version 280cc port, 38cc chamber25500141Buick/Chevy aluminum, 10' race head, 42cc chambers, symmetrical ports, 235cc intake port volumes, 2.1"/1.625" valves25534351C..04-up.Gen.I Bowtie, cast iron Vortec head, 175/65cc ports, 2.00/1.55 valves, "small port head"25534371C..04-up.Gen.I Bowtie, cast iron Vortec head, 206/77cc ports, 2.00/1.55 valves, "large port head"3341736990-up350.Gen.I Goodwrench crate motor,"Hecho en Mexico", 76cc, 0-3267114-bolt, Alum., CanAm, 4.44" bores, steel cylinder liners340220..427T68-854-bolt345014..454.70-86346236..454.75-762-bolt359070..454.70-90361959..454.73-902 or 4 bolt364776..427T68-854-bolt364779..366T68-904-bolt399204..509.70-714-bolt, Alum., CanAm, 4.5" bores, steel Cylinder liners399293..366T77-784-bolt473478..427T77-904-bolt495102..4-bolt, Alum., CanAm, 4.5" bores3782870.427T68-764-bolt3824553.366T66-674-bolt3855961.396.65-662 or 4 bolt3855961.427.662-bolt3855962.396.65-664-bolt3855977.366T66-734-bolt3869942.427.66-672 or 4 bolt3902406.396.672 or 4 bolt3904351.427.672 or 4 bolt3904354.366T66-764-bolt3916319.366T684-bolt3916321.427.682 or 4 bolt3916323.396.682 or 4 bolt3925521.427T68-854-bolt3935439.427.68-692 or 4 bolt3935440.396.68-692 or 4 bolt3937724.366T68-854-bolt3937726.427T68-844-bolt3946052.427.694-bolt, Alum. Privacy Policy. Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. The numbers are just figures a manufacturer uses to identify their products and to track them sometimes. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: Can a Wheel Speed Sensor Cause Limp Mode? It is an eight or nine-digit number. I have a 1969 z28 I bought a few years back from a friend who was orig owner. Im looking into a cam to suit small block ford. Crankshaft Identification Use these casting numbers to identify the crankshaft you have. It's real easy to spot if the heads are off because of the small 3.74" bore. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. Step 2 Find the profile or grind number. 366298.4Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal. 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. I was given a can that has the #s I have a Pontiac camshaft with 960938 number on the backside. Chevy V8 Crankshaft Casting Numbers. Drake studied journalism at Southern Connecticut State University. 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 7661-11 is a serial number specific to that camshaft only. At one time they supplied 85% of the blanks in the world. News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . Can I Drive my Mercedes With Check Engine Light On? Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! 10186060 Hydraulic Flat Tappet "454". How Long to Drive After Reset Computer to Pass Emission Test? COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM. (396 BBC), Is this enough information to get the specs on this cam? were used. Then do the same process with the lobe at 0.050 on the closing side. **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. Show More Show Less. Reading a Cam Card: Advance 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. GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. 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. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. The LS . The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. the 4.3L LT1 was also referred to as the L99 (not to be confused with the LS variant bearing the same name) A native of New Haven, Conn., Floyd Drake III began writing in 1984. 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. That gives us our first clue where to look for the rest of the numbers. Quick View. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. I just rebuilt the carb as it was pretty dirty and leaked at the accel pump. How to Get a California Drivers License with an Out of State License, Can You Register a Car Online in Florida? I have a fessler roller cam trying to identify the grind specs. I have more than 4 Camaro's am I Addicted? Lift of tested lobe could be .300" before wear. (Yes or No), Will Hub Centric Rings Stop Vibration? ). If it is an original GM part, these numbers will be there. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. The Chevy part number for that cam is 3896929. JavaScript is disabled. i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. CWC is the casting ID for CWC Textron. Any help much appreciated. Displacing 2.4 liters in an inline-four configuration, the LEA is part of the Ecotec engine. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and 0.328-inch lobe lift. This is a job for professionals and the mechanically-inclined. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. Grind numbers are HR 224/339. 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. The next information engraved on the cam was HR 114. This is the COMPCams equivalent of the Rosetta stone for cam lobes. The exhaust number also comes through some time, maybe if you see digits like 266/288; the second shows the exhaust number. I have no idea whats on the inside. They provide average torque to the valves. I dont have any numbers. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Canadian made ERTEL brand. Chevrolet "Stock" LS Camshaft. It is typically located in the center of the cam between the lobes. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. If the number was 110 degrees, this would increase the amount of overlap. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. SBC Block Casting Numbers. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! I was pretty careful with the float settings etc and it fired right up when put back on! This was one of the best selling/most popular cams through the years past! 52.01.07 I tried searching & googling these markings with no luck. Do not enter the -2 on dual cams part numbers or the (I) that indicates intake or (E) for exhaust. Switching to Synthetic Oil After 100k Miles: Pros and Cons. COMPCams uses two-number designations for all its engine families. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. A good camshaft cannot be underrated, so you need it to make your engine function well. The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . 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. You can basically find it in the center of the cam between the lobes. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. A roller camshaft has its wheel attached to the bottom of the lifters body. It helps you know the compatibility of the camshaft to the supposed vehicle you want to use it for. The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883. Thank you ,This has been very helpful. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. Does OnStar Keep Location History? A stamp is not a functioning part of a camshaft. The Chevy part number for that cam is 3896929. 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. The numbers on it are, 3734R/3377R, HR13, I 3996-06. The 8th digit of the VIN. The cam is in very good used condition and will likely be reused. Installing a Timing Belt on Ford Ranger chevrolet image by Eduard Shelesnjak from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. That number is actually the casting number of the camshaft, not the part number. 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. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. Once we found the hydraulic roller section, the first column lists each lobe by number. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. This advances the intake centerline by that number of degrees. 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. Check this castingcarefully to determine which features it may have. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. Visit www.jamsionline.com to shop today. No smoke, but I have not checked compression yet. Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. For instance, the number for a Toyota 3SGE would be CS 3SGE. JavaScript is disabled. Below is some reference data for cylinder head casting numbers with valve sizes, years used, etc. Manufacturer Part Number. So why did this cam not have a lope to it in the 283, from everything I am reading long . 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. side, aluminum1017439091-95350.LT5, ZR1, DOHC, 32-valve, pass. Quick View. While these engines were based on the GM Family II engine, the architecture was substantially re-engineered for the new Ecotec application produced since 2000. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. With your cam it might come out to somewhere between 114 to 110 degrees depending on if the cam was machined with advance. eBay Product ID (ePID) 2320190292. There are 3 different ways to select your camshaft tightly. Learn more about: Cookie Policy, Will a 50 Inch TV Fit in my Car? Thanks, Mike. 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. All of these applications had the same specs as the initial 1967 application. 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 recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. Add the two numbers together and divide by 2. They minimize friction, which ensures the camshaft contains more power. A SOHC allows at least 2 to 3 valves per cylinder configuration, with more manufacturer prowess. If I rotate the camshaft the other side has markings of AO, D14. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). The Chevy Big Block's Camshafts can be identified by a number that is cast or stamped and is usually located in between the CAM lobes. 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. SMALL-BLOCK CAMSHAFTS AND COMPONENTS 3896962 Hydraulic flat tappet Duration @ .050" Lift (deg): I: 222 / E: 222 Maximum Lift (in) w/1.5 rocker*: I: .450 / E: .460 Lobe Centerline (deg): 114 Used in 350-/290-HP crate engine 24502476 Hydraulic flat tappet Duration @ .050" Lift (deg): I: 212 / E: 222 Maximum Lift (in) w/1.5 rocker*: I: .435 / E: .460 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 will give you the intake centerline. 4226 what kind of camshaft is it. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. Analog system. A call to Comp at 1-800-999-0853 will probably give you some more details. Can a Bad Battery Cause a Check Engine Light to Come On? 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. The pushrods cam stays above the cylinder, which is always above the combustion chamber. It's a stock cam. Required fields are marked *. In 1998, head c/n 24575507 arrived with a heart-shaped combustion chamber against a D shape. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. Remove the camshaft from the engine if necessary. The markings on end of cam is 300C6 and X6733. GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. Car AC Compressor Not Turning On (Causes and Quick Fix). Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have.