gm camshaft identification numbers

journal.3.00" stroke3849847.283.forged..small journal.3.00" stroke3876764.283.forged or cast..sm. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. The GM Generation I and Generation II (LT) engine families are both derived from the longstanding Chevrolet small block V8.The Generation III small-block V8 was a "clean sheet" design, which replaced the Gen I and Gen II engine families in 2002 and 1995 respectively.. Like the previous two generations, the Buick and Oldsmobile small blocks, the Gen III/IV can be found in many different brands. Below is some reference data for cylinder head casting numbers with valve sizes, years used, etc. Thanks, Gary in N.Y. P.S. 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. It is an eight or nine-digit number. Quick View. The markings on end of cam is 300C6 and X6733. Small Block Chevy Factory Camshafts . Compare Related Articles. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. 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. Many camshaft number reference sites exist online for V8 engines, but determining the camshaft specs for six- and four-cylinder engines may require contacting a Chevrolet parts department. SBC Block Casting Numbers. Remove the camshaft from the engine if necessary. They are not flat, and they are recognized with a slight crown on the face. Camshafts come in a wide array of variations, and Chevrolet has a range of camshafts for different applications, engine sizes and performance specs. GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. Are you a newbie in dealing with cars and you seem not to know how useful a camshaft is and what is used for? A DOHC is known as a dual overhead cam. 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. Chevy V8 Casting Number Locations. The Fora platform includes forum software by XenForo. The identification number consists of a seven-to-eight digit code. 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. Any way to to determine the type of cam from the outside? There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . 4226 what kind of camshaft is it. exhaust valves. The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. 14010280 Small Block V8 1979-1982 267, 2 bolt 14011064 Small Block V8 1983 350, 4 bolt 14011148 Small Block V8 1987-1989 350, roller cam, 1-piece rear seal 14016376 Small Block V8 1979-1982 267, 2 bolt 14016379 Small Block V8 1977-1979 350, 2 bolt or 4 bolt 14016381 Small Block V8 1980-1984 305, 2 bolt 14016382 Small Block V8 1979-1984 305, 2 bolt CAM 6964 1969 CAMSHAFT ID. CAST3736098. CAMSHAFT SPECIFICATIONS Part No. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? i have a 383 chev engine ibought and would like to know what cam is in it. Stamped on end is Z099, also has three pink dots above that stamping. The numbers are just figures a manufacturer uses to identify their products and to track them sometimes. There are two easy ways: 1. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. 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. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. Answer (1 of 4): Most common specs for an engine would be for example. Show entries Search: Showing 1 to 10 of 46 entries Previous Next Big Block Crankshaft Casting Numbers Lookup The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. Only show this user. After working as a reporter in Oregon, he is now based back home in New Haven. I have Comp Cams camshaft. Cam is in used shape but with little to no wear. That number is actually the casting number of the camshaft, not the part number. 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. The Fora platform includes forum software by XenForo. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. 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. . These markings will usually be in the center of the camshaft, obviously in between the valve lobes. Chevy LSX454 Camshaft. Reading a Cam Card: Advance (Yes or No). Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. Thank you, if you can help, send me an e mail and I will send you a picture. How to Start a Car with a Blown Head Gasket (Explained). Contact. Quick View. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. can you help me to decode this cam . But this comes at the cost of reduced torque in the middle of the rpm band. intake and 1.72 in. 52.01.07 CAM 6930 1967 CAMSHAFT ID. . One thing I"m trying to figure out is if the orig cam is still in the car. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. This is what is on the cam, it would not let me past a picture here. 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! 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. Used on RPO: L86 (1980-1991). Switching to Synthetic Oil After 100k Miles: Pros and Cons. The EP1 (not EPI) indicates that it was cast for Engine Power Components. 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. GM 6930 , 6964 and 5054. Also a great fitting cam for the earlier 302 or 327 Solid lifter Hi-Po motors used by Corvette, Nova or Camaro. 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. 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. This figure is derived by adding the intake center line plus the exhaust center line and dividing by two. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. . Grind numbers are HR 224/339. Four or six-cylinder can be attached to the valves. It doesnt add to the function of the camshaft, nor does it play an important role. .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 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. 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. On the home page, we looked for the Information tab and then clicked on Catalogs. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. Getting a camshaft can be a burden on many car owners; it works well when you have the right one. It is typically located in the center of the cam between the lobes. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. (Yes or No), Will Hub Centric Rings Stop Vibration? 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. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. The engine also had smaller 1-1/8? In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. i have a 383 chev engine ibought and would like to know what cam is in it. I have a 1969 z28 I bought a few years back from a friend who was orig owner. eBay Product ID (ePID) 2320190292. ZL-1, Mark IV3946053.427.97-up4-bolt, Alum. The "2182" Casting number identifies this camshaft as GM part number 3972182. Locate the ID number on the camshaft. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. I have a Street Performance comp cam that was purchased in 2007. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. Any info helps, or where I can find. Now he serves as a regular contributor to OnAllCylinders. If the number was 110 degrees, this would increase the amount of overlap. A stamp is not a functioning part of a camshaft. 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. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. 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. were used. For instance, the number for a Toyota 3SGE would be CS 3SGE. Chevy . Why are Volkswagen Oil Changes so Expensive? Anyone know whos cam this is. The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. 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. It models the airflow for the computer to calculate fuel. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. Is there any way anyone could hp me out? Chevy V8 "W" Motor 348-409 Casting Numbers. 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. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. They are the flat tappet and roller camshaft. The only thing we dont know from these number is the cams intake centerline. They appear to be a rock arms with a small diameter. 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. The cam is in very good used condition and will likely be reused. Now zero the indicator and turn the engine backward until the dial indicator reads roughly 0.100-inch. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). i have a hr8ty 3050s/305is y7379 cc 212203 2811 out of a 1999 360 dodge magnum i cannot get any info on lift duration or center line also has cc letters asume comp cam ? If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. It's a 10168588 casting that had the numbers "4.3" cast on the side, too. To decipher these codes, we accessed COMPs website at compcams.com. side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Can you tell me the specs on this cam from these numbers? This card reveals the basic information you need to identify, properly install, and degree the camshaft in the engine. They make castings for CMC (Camshaft Machine Corp.) and EPC (Engine Power Components) and others. By visual inspection. Can I Drive my Mercedes With Check Engine Light On? 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 Crankshaft Identification Use these casting numbers to identify the crankshaft you have. It helps you know the compatibility of the camshaft to the supposed vehicle you want to use it for. I only put the numbers here that I can prove, so this is a short list. Check this castingcarefully to determine which features it may have. View (5) $203.95 More Info. The easiest way to get the best is to check the numbers in between the lobes or boxes. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Old school Comp 9000 Mallory Distributor and coil. How Long Does it Take for Oil to Drain Back into the Pan? Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. However, most cams intended for street use are ground with several degrees of advance. many years ago! Good Day: A pushrod is a metal tube constructed to transfer the valve motion of a lifter riding on the camshaft directly to the value. We would like to thank everyone that has contributed to the data provided on this site. Thanks, Your email address will not be published. Chevy V8 BBC Block and Head Casting Numbers. Match the number to a Chevrolet camshaft part number listing. If it is an original GM part, these numbers will be there. It's for a 99-04 truck. There are 3 different ways to select your camshaft tightly. 0967 is the last four digits of the GM part number. $426.78. The 8th digit of the VIN. This requires a little more time but COMP does not charge extra, which is a great service if you are into tweaking the cam a bit to do something special. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. Chevy V8 SBC Block and Head Casting Numbers. 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. (396 BBC), Is this enough information to get the specs on this cam? It's real easy to spot if the heads are off because of the small 3.74" bore. 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. 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: In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. What Happens When the Turbo Goes on a Diesel? by Greenlight Mon Nov 10, 2014 6:56 pm. The LS . In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. 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. This advances the intake centerline by that number of degrees. The next two numbers are the valve lift of . Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. Chevy Intake Manifolds Could someone help me identify these cam numbers ? In 1998, head c/n 24575507 arrived with a heart-shaped combustion chamber against a D shape. This is a job for professionals and the mechanically-inclined. This number should be on your camshaft, followed by a number of degrees. GM is recalling seven. (Yes or No). 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. 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. Can You Register a Car with a Bill of Sale and No Title? (Advanced five degrees; use spring P/N 3970627.) I am partially colorblind so they may be sort of tanish as well. A Solid Lifter Camshaft for 1970 1971 and 1972 Camaro Z28 or Corvette with the 350 LT1 Small Block Motor. side, aluminum1017439091-95350.LT5, ZR1, DOHC, 32-valve, pass. indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. The grind number is the ever noted number, far and more recognized than the model number. Canadian made ERTEL brand. Its got a great loping idle (big cam?? Trying to find the specs on this camshaft. Learn how your comment data is processed. And there is a CR inscribed as well off the lower left A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Can a Wheel Speed Sensor Cause Limp Mode? 1970 Mustang Mach I "Synergy Green Pearl"351 Cleveland - Fuel Injection "The Rattle Shaker" Complete nut and bolt rotisserie restoration LESS than 500 miles by C.A.R.S. Do You Get a Ticket in the Mail for Passing a School Bus? 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. Step 3 Match the number to a Chevrolet camshaft part number listing. 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. 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. They provide average torque to the valves. This an original 1966 283 camshaft casting number is 3732798, hydraulic lifters. 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 (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. First Generation Camaro Info and Tech - 1967-1969. This is the COMPCams equivalent of the Rosetta stone for cam lobes. side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. engine P/N 10185058. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. order on 8.1L big block engines is different than a normal big block. 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. Re: camshaft identification. 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. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. What are your thoughts on the #5054 or anything else? My buddy says its a mild cam thats bigger than a stock LS6 version, but he didnt have any more information. The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for. The 3709/3711 numbers are references to lobe designs. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. 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. 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 car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes.

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