Privacy Policy. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. Thank, Ray. Inc. Lee's Summit MO. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. I suspect you have . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. This an original 1966 283 camshaft casting number is 3732798, hydraulic lifters. On the shaft the #'s 1539 are stamped in one spot, and CWC is stamped in another spot. 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. 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. How Long to Drive After Reset Computer to Pass Emission Test? Cam is in used shape but with little to no wear. (You must log in or sign up to reply here. 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. E 330864..68-84ovalOPEN396, 402, 366T, 427T, 454 Truck330865..68-84ovalOPEN396, 402, 366T, 427T, 454 Truck330866..68-78ovalOPEN366T, 427T330867..68-73ovalOPEN427T336765..68-78ovalOPEN427T336768..73-76ovalOPEN427T336781..73-85ovalOPEN454, 118cc chamber, 256/114cc ports343771..68-86ovalOPEN366T, 427T, 454343772..68-86ovalOPEN366T, 427T, 454343783..70-76ovalOPEN454 Truck346236..75-87ovalOPEN454, 120cc chamber, 225/116cc ports352625..70-76ovalOPEN454 Truck353049..73-84ovalOPEN454, 122cc chamber, 255/119cc ports366765..74-78ovalOPEN427T473328..68-69ovalOPEN366T3856206.65-66oval..CLOSED..396, 97cc chamber3856208.65rect..CLOSED..396/425hp, 109cc chamber 396/375hp "Z-16" Chevelle3856213.66-82oval..CLOSED..366T, 427T3856260.68oval..CLOSED..396 Truck3872702.65-66oval..CLOSED..396, 427, 98cc chamber3873858.65-67rect..CLOSED..396, 427, 109cc chamber3876875.77-85ovalOPEN427T3904390.67oval..CLOSED..396, 427, 98cc chamber3904391.67rect..CLOSED..396, 427, 107cc chamber3904392.67rect..CLOSED..427, Aluminum, L88, L89, 107cc chamber3904393.68-76ovalOPEN366T3908952.67ovalOPEN427, "M.Truck", Marine3909802.67oval..CLOSED..396, 427, 101cc chamber3917215.67-68oval..CLOSED..396, 427, 101cc chamber3917219.68-85ovalOPEN366T, 427T3919840.67-69rect..CLOSED..396, 427,107cc chamber3919842.68-69rect..CLOSED..396, 427, Aluminum L88, L89, 107cc chamber3931063.68-69oval..CLOSED..396, 402, 427, 101cc chamber3933148.69-84ovalOPEN'69 396/265hp, 366T, 427T, 112cc chamber3933149.68-76ovalOPEN427T, 122cc chamber3935401.68-76ovalOPEN427T3946074.69&71rectOPEN'69 427 L88, ZL1, Aluminum, 118cc chamber '71 454 LS6, "round exhaust port"3964290.69-70oval..CLOSED..396, 402, 427, 454, 101cc chamber Large or small hex spark plugs used3964291.69-72rect..CLOSED..396, 402, 427, 454, 109cc chamber, Large or small hex spark plugs used, crate motor usage in years after 1970.3965198.68-69oval..CLOSED..396 Truck3975950.68-70ovalOPEN396, 402 Truck, 366T, 427T3986133.68-85ovalOPEN366T, 427T, 454 Truck3986135.69-73ovalOPEN366T, 427T3986136.68-84ovalOPEN366T, 427T, 454 Truck3993820.71ovalOPEN402, 113cc chamber, 255/114 ports3993820.71-84ovalOPEN454 Passenger and Trucks, 113cc chamber, 255/114 ports3994026.71rectOPEN454 LS6, 118cc chamber3999241.72ovalOPEN402, 454, 113cc chamber, 6272292.70-78ovalOPEN402, 4546272990.70-uprectOPEN454 service replacement, used on some MKIV crate engines, 118cc chamber10045427..rect.Pontiac/Chevy Aluminum, 91cc chamber Large Port, race10049875..rect.Pontiac/Chevy Aluminum Small port, race10051128..rect.Bowtie, Aluminum 72cc chambers Symmetrical ports10051129..rect.Bowtie, Aluminum "raw" casting, Symmetrical ports10052902..ovalOPENMkIV, 427T1010114091-upoval..CLOSED..Gen.V 366T, 427T1011415691-upovalOPENGen.V & VI 454, 118cc chamber1014127996-upoval..CLOSED.."Vortec 7400", 100cc chambers1048705277-90ovalOPEN366T1236339196-upovalOPENBowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI, 110cc chamber1236340196-uprectOPENBowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI, 118cc chamber1255816201-upoval..CLOSED..Gen.VII,"Vortec 8100", 8.1L, 496, truck1256024198-upoval..CLOSED.."Vortec 7400", 100cc chambers1256293291-95ovalOPENGen.V, truck crate motor, 118cc chambers1256293391-95ovalOPENGen.V, 118cc chambers1256293400-uprectOPENGen.VI 502 Marine1401107769-uprectOPENAluminum, fits MKIV, "C-port" 118cc chamber, also sold as a "solid" head1404486184-96rect.Bowtie, Aluminum, MkIV, "raised runners", 1st design, 105cc chamber1404486196-uprect.Bowtie, Aluminum, Signature Series, fits MKIV, Gen.V, Gen.VI "raised runners", 2nd design, 115cc chamber1404486184-96rect.Bowtie, Aluminum, MkIV "raw" casting of "861" MKIV 1st design1408104578-87ovalOPEN4541408105285-87ovalOPEN366T, 427T, 454 Truck, Marked "HiPerf"1409235986-90ovalOPEN366T, 427T, Marked "HiPerf"1409236086-90ovalOPEN454 Truck, "peanut" round ports1409618870-71rectOPEN454 service replacement, also used on later Mark IV LS-6, LS-7 and 454 HO crate motors, 116cc chamber1409708891-uprectOPENGen.V 454/502 HO, 118cc chamber2450258597rect.Olds/Chevy, DRCE 2, Pro Stock aluminum, for blocks w/4.900" bore spacing2553440404rect.Olds/Chevy, DRCE 3, Pro Stock, aluminum, for blocks with 4.900" bore spacing, Oval includes both "peanut" (also called "round") ports and large oval ports, Copyright EngineRepairShop.com 2011-2023 Privacy Policy Disclaimer. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: That number is actually the casting number of the camshaft, not the part number. 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. A good understanding of these factors will assist you in making a wise decision. 210/218 at 0.551/0.556 at 113 degrees . I have more than 4 Camaro's am I Addicted? 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 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. Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. 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. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. On the home page, we looked for the Information tab and then clicked on Catalogs. This is a COMP Cams timing card. The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H.O. Now he serves as a regular contributor to OnAllCylinders. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Learn how your comment data is processed. Any advice? Chevy V8 BBC Block and Head Casting Numbers. Quick View. I tried searching & googling these markings with no luck. Does OnStar Keep Location History? Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. 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. This is an involved process, requiring the removal of the engine's front end. 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. I have no idea whats on the inside. If I rotate the camshaft the other side has markings of AO, D14. Once we found the hydraulic roller section, the first column lists each lobe by number. Melling listings include OEM applications to match the engine requirements desired including horsepower, economy and needed engine torque. It is typically located in the center of the cam between the lobes. It is an eight or nine-digit number. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Switching to Synthetic Oil After 100k Miles: Pros and Cons. Compare Related Articles. Canadian made ERTEL brand. I actually went through several lists and made some corrections before making this list. This method requires you to do a few tasks like measuring some diameters and comparing them to the database. A SOHC allows at least 2 to 3 valves per cylinder configuration, with more manufacturer prowess. 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. For a better experience, please enable JavaScript in your browser before proceeding. My 1968 Camaro Site. The numbers engraved in the body part of the camshaft are called the Stamped number or casting number. The LEA is an engine produced by General Motors for a wide variety of compact and midsize vehicles. The cam is in very good used condition and will likely be reused. We have it in internal combustion engines and some electric motor speed controllers. Chevy V8 "W" Motor 348-409 Casting Numbers. CAM 6930 1967 CAMSHAFT ID. 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. This number should be on your camshaft, followed by a number of degrees. (Yes or No), Will Hub Centric Rings Stop Vibration? You need the best camshaft that works well with your vehicle. Understanding Cam Design. * 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. 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. To avoid spinning, roller lifters are lifted together. motor could have casting number 10112391 or 10112391S that is the service replacement. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. I have a Pontiac camshaft with 960938 number on the backside. Are you a newbie in dealing with cars and you seem not to know how useful a camshaft is and what is used for? To decipher these codes, we accessed COMPs website at compcams.com. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. 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. The 3709/3711 numbers are references to lobe designs. Can Jumpstarting a Car Damage the Alternator? 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. Speed isnt a problem with a dual camshaft and it increases the engines power. 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. To Develop Good Eye Habits While Driving You Should? If it is an original GM part, these numbers will be there. 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. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. How to Start a Car with a Blown Head Gasket (Explained). 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. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . .390 .410 310 320 1.50 In 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. It's a 10168588 casting that had the numbers "4.3" cast on the side, too. The only stamped markings on the front are 951758. 2. 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. Required fields are marked *. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. I was pretty careful with the float settings etc and it fired right up when put back on! with Jeff Smith: How to Decode a COMP Cams http://www.onallcylinders.com/Jeff Smith: First of all, the CC refers to COMP Cams. 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. Remove the camshaft from the engine if necessary. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Chevy . Getting a camshaft can be a burden on many car owners; it works well when you have the right one. Identifiers: Letter R, CWC, EP1, C4 and E8. Hi, I have a cam that trying to figure out the specs on. Add the two numbers together and divide by 2. Crane makes Blueprint camshafts for almost, if not, every GM, Ford, Mopar engine from the sixties and seventies. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below.