I have a Street Performance comp cam that was purchased in 2007. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). ZL-1, Mark IV3946053.427.97-up4-bolt, Alum. The first three-digit number shows the average duration time of the lobes. 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. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Speed isnt a problem with a dual camshaft and it increases the engines power. Step 2 Find the profile or grind number. 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. COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM. 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 . My buddy says its a mild cam thats bigger than a stock LS6 version, but he didnt have any more information. Stamped on end is Z099, also has three pink dots above that stamping. I tried searching & googling these markings with no luck. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. many years ago! i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. The only thing we dont know from these number is the cams intake centerline. Stamp numbers are engraved by the manufacturers to monitor production and distribution. Melling listings include OEM applications to match the engine requirements desired including horsepower, economy and needed engine torque. It is an eight or nine-digit number. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. Their outer look tells the difference. We have it in internal combustion engines and some electric motor speed controllers. Thanks, Your email address will not be published. Roller: 202/206 .403"/.415" Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. A native of New Haven, Conn., Floyd Drake III began writing in 1984. A stamp is not a functioning part of a camshaft. 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 . These markings will usually be in the center of the camshaft, obviously in between the valve lobes. 4270 H11 then letters CC vertically, then CB6554 can you tell me the specs on this cam? This will help you get the full details directly from the manufacturing, which requires the model and other factors that need attention. by Greenlight Mon Nov 10, 2014 6:56 pm. CHEVY BIG BLOCK V-8 Crankshaft Casting Numbers BBC TWO PIECE REAR MAIN OIL SEALS 3.76" STROKE used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T 6223396,402,427.forged, 1053 steel 7115396,402,427.forged, nitrided, cross-drilled, 5140 steel 3804816..396,402,427.cast 3856223..396.forged 3863114..402. 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. 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 DOHC is a production to improve the volumetric of the internal combustion engine in which it has more power than a simple overhead cam. 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. Can You Register a Car in a Different Name than on the Title? **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. Camshafts come in a wide array of variations, and Chevrolet has a range of camshafts for different applications, engine sizes and performance specs. Im looking into a cam to suit small block ford. The cam is in very good used condition and will likely be reused. Terms of Service. The "2182" Casting number identifies this camshaft as GM part number 3972182. If it is an original GM part, these numbers will be there. Remove the camshaft from the engine if necessary. Now he serves as a regular contributor to OnAllCylinders. Match the number to a Chevrolet camshaft part number listing. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. The lobes are also listed with various theoretical valve liftsthe one were interested in would be the LS1s 1.7:1 rocker ratio that delivers 0.558-inch of lift. However, remember what to do after replacing your camshaft sensor in your car to avoid another frustration. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. CAMSHAFT SPECIFICATIONS Part No. exhaust valves. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. This advances the intake centerline by that number of degrees. Re: camshaft identification. 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. The suffix provides the. Contact. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. Trying to find the specs on this camshaft. That gives us our first clue where to look for the rest of the numbers. Chevy LSX454 Camshaft. The EP1 (not EPI) indicates that it was cast for Engine Power Components. For a better experience, please enable JavaScript in your browser before proceeding. 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. CWC is the foundry that cast the cam blank. If I rotate the camshaft the other side has markings of AO, D14. Looks to have stock cast iron heads and exhaust. 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. 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. 10186060 Hydraulic Flat Tappet "454". This was one of the best selling/most popular cams through the years past! 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. side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. journal.3.00" stroke3849847.283.forged..small journal.3.00" stroke3876764.283.forged or cast..sm. Any time you are making this kind of important decision about your engine, it's . 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. One of these cams looks unused and the other at best slightly used. 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 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. PG,63 4WD 1st series. Learn how your comment data is processed. . . Can I Drive my Mercedes With Check Engine Light On? Quick View. They are widely used and they perform well, which is more affordable than a roller cam. Any help much appreciated. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. The markings on end of cam is 300C6 and X6733. Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! It's real easy to spot if the heads are off because of the small 3.74" bore. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. JAMSI is a trusted source of automotive engine parts. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. I was pretty careful with the float settings etc and it fired right up when put back on! Hope weve helped you with a little more camshaft knowledge. Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. The Chevy part number for that cam is 3896929. (Yes or No). They are not flat, and they are recognized with a slight crown on the face. Ford Au part no ! Crane makes Blueprint camshafts for almost, if not, every GM, Ford, Mopar engine from the sixties and seventies. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. I did a search as well, google and on here. This card reveals the basic information you need to identify, properly install, and degree the camshaft in the engine. They minimize friction, which ensures the camshaft contains more power. I have a Pontiac camshaft with 960938 number on the backside. (Advanced five degrees; use spring P/N 3970627.) 330864: 1968 through 1991 oval port, open chamber, 2.06 in. back of cam has 660 371079 front of cam has s42008L, i have a 572 hemi and i am in the process of pulling the cam but the harmonic damper is being a pain . 14088552 Leave a comment at the end of this post if you cannot find the information you want. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. 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. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. 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. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. i have a 383 chev engine ibought and would like to know what cam is in it. Thanks, Gary in N.Y. P.S. Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. For instance, if you have numbers like 266H04, the last two digits are the numbers used to show the measurement of the lobes. The identification number consists of a seven-to-eight digit code. Using stamped numbers and. Add the two numbers together and divide by 2. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. This is an involved process, requiring the removal of the engine's front end. Are you a newbie in dealing with cars and you seem not to know how useful a camshaft is and what is used for? Indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. motor could have casting number 10112391 or 10112391S that is the service replacement. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. A good understanding of these factors will assist you in making a wise decision. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. The Fora platform includes forum software by XenForo. How Long Does it Take Transmission Fluid to Circulate? The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for. (Yes or No). 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: 0967 is the last four digits of the GM part number. After working as a reporter in Oregon, he is now based back home in New Haven. What Happens When the Turbo Goes on a Diesel? Privacy Policy. There are 3 different ways to select your camshaft tightly. And there is a CR inscribed as well off the lower left Getting a camshaft can be a burden on many car owners; it works well when you have the right one. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 * 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 a 1969 z28 I bought a few years back from a friend who was orig owner. All of these applications had the same specs as the initial 1967 application. The greater number of degrees means there is less overlap between the intake and exhaust lobes. Step 3 Match the number to a Chevrolet camshaft part number listing. 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? It means the valve is open at 255 degrees. Good Day: How to Turn off Daytime Running Lights (Explained), How to Turn Off Headlights While Car is Running. Any advice? On the home page, we looked for the Information tab and then clicked on Catalogs. They appear to be a rock arms with a small diameter. 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . no idea) and only pulls about 10psi vac at idle. 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. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. Small Block Chevy Factory Camshafts . You can also use an analog system to identify unknown camshafts. There are 3 different ways to select your camshaft tightly. The HR refers to this as a hydraulic roller camshaft while the 114 refers to the lobe separation angle (LSA). 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. I can quote you the numbers from the 1964 "Parts and Accessories Catalog" but, be aware that earlier numbers may exist and be superseded by the ones listed in this catalog. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. order on 8.1L big block engines is different than a normal big block. They include: Identifying with your eye. (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. I have a fessler roller cam trying to identify the grind specs. Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35. A DOHC is known as a dual overhead cam. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. This is the COMPCams equivalent of the Rosetta stone for cam lobes. Different chamber volumes, port volumes, port locations, valve sizes, etc. E (Yes or No). Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. Chevy Intake Manifolds Chevy V8 "W" Motor 348-409 Casting Numbers. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. It is a mode of identification used by manufacturers. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. 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. Is there any way anyone could hp me out? 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. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. That particular cam put my son's pump-gas 406" SB Chevelle to an 11.80 E.T. A good camshaft cannot be underrated, so you need it to make your engine function well. Inc. Lee's Summit MO. For instance, the number for a Toyota 3SGE would be CS 3SGE. eBay Product ID (ePID) 2320190292. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. Can I Sell a Car if the Title is not in my Name? This same pattern was followed throughout the 1997 production cycle.
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