i have a 383 chev engine ibought and would like to know what cam is in it. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. GM is recalling seven. This an original 1966 283 camshaft casting number is 3732798, hydraulic lifters. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . To decipher these codes, we accessed COMPs website at compcams.com. Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. I did a search as well, google and on here. I have 3.55 geArs and a 3600 stall. however, depending on how you want to look at it. Chevy V8 BBC Block and Head Casting Numbers. CAM 6964 1969 CAMSHAFT ID. 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. 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: 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. If I rotate the camshaft the other side has markings of AO, D14. What are your thoughts on the #5054 or anything else? Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. Carb number is stamped in this location as well as on an identification tag held on with one of the air . In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. 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 . The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. Thank, Ray. I dont have any numbers. The Chevy orange will appear as new for decades.Gear shifting is accomplished with a rebuilt 1960's HURST Competition Plus shifter specific to the C2 Corvette w/Borg Warner which is extremely rare.Ignition is handled by a computerized multiple spark discharge controller providing instantaneous throttle response by way of multiple sparking at . In 1971 he installed a 1965 Corvette fuel injection system. There are 3 different ways to select your camshaft tightly. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. Chevy V8 SBC Block and Head Casting Numbers. A DOHC is known as a dual overhead cam. Thanks, Mike. 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. They minimize friction, which ensures the camshaft contains more power. I tried searching & googling these markings with no luck. We would like to thank everyone that has contributed to the data provided on this site. The pushrods cam stays above the cylinder, which is always above the combustion chamber. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. I actually went through several lists and made some corrections before making this list. Each number has a meaning and an interpretation. 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. I just rebuilt the carb as it was pretty dirty and leaked at the accel pump. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. 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. Four or six-cylinder can be attached to the valves. the 4.3L LT1 was also referred to as the L99 (not to be confused with the LS variant bearing the same name) Can Jumpstarting a Car Damage the Alternator? SBC Block Casting Numbers. You need the measurement of the diameter to compare with the database or any online store IDs. DOHC is a production to improve the volumetric of the internal combustion engine in which it has more power than a simple overhead cam. *54-55 passenger W/PG, 56-58 passenger. Understanding Cam Design. It is an eight or nine-digit number. From the distribute drive gear down are the folloing markings: CWC, 06, C14, EP1. 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. Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. Despite the differences, however, an 8.1L camshaft will drop right into a 454 like it belongs there - but it will only run four cylinders. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. That gives us our first clue where to look for the rest of the numbers. That gives us our first clue where to look for the rest of the numbers. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. This number should be on your camshaft, followed by a number of degrees. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. Any advice? You can basically find it in the center of the cam between the lobes. 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. exhaust valves. $426.78. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. A good camshaft cannot be underrated, so you need it to make your engine function well. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. E.g. Hope weve helped you with a little more camshaft knowledge. I can't help you in regards to who actually did the final grinding. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. Small Block Chevy Factory Camshafts . 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 . Their outer look tells the difference. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. The Chevy part number for that cam is 3896929. Stamped numbers are 529506 and 031531. 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. There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. That particular cam put my son's pump-gas 406" SB Chevelle to an 11.80 E.T. Cam is in used shape but with little to no 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. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. That number is actually the casting number of the camshaft, not the part number. Only show this user. The easiest way to get the best is to check the numbers in between the lobes or boxes. The next two numbers are the valve lift of . It models the airflow for the computer to calculate fuel. Show entries Search: Showing 1 to 10 of 46 entries Previous Next Big Block Crankshaft Casting Numbers Lookup As each engine model comes with a specific camshaft, proper identification is key to finding the right one. However, most cams intended for street use are ground with several degrees of advance. Chevy LSX454 Camshaft. And there is a CR inscribed as well off the lower left Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! 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. Why are Volkswagen Oil Changes so Expensive? For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. Using stamped numbers and. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. Thank you, if you can help, send me an e mail and I will send you a picture. How to Turn off Daytime Running Lights (Explained), How to Turn Off Headlights While Car is Running. 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. A pushrod is a metal tube constructed to transfer the valve motion of a lifter riding on the camshaft directly to the value. **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. (You must log in or sign up to reply here. The HI-PO color coded stripes on the camshaft end are green, orange and red. My 1968 Camaro Site. A native of New Haven, Conn., Floyd Drake III began writing in 1984. At one time they supplied 85% of the blanks in the world. Oct 8, 2010 #2 Z z28rod Veteran Member Apr 30, 2009 4,472 hopewell junction,ny 10186060 Hydraulic Flat Tappet "454". Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. This type allows more direct airflow through the engine without having to deal with obstruction. $850.12. There are at least 6 different versions as of 11/99. On the home page, we looked for the Information tab and then clicked on Catalogs. 4485B 4391B HR112+4 R (with a line under the R ) then CC and at the bottom G1979-14. The suffix provides the. They are not flat, and they are recognized with a slight crown on the face. The second lobe number 3711 refers to the same family of lobesthis one specd at 269 degrees advertised with 216 degrees at 0.050-inch tappet lift with a lobe lift of 0.330 and a theoretical valve lift of 0.561-inch. 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. 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. 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 ? can you help me to decode this cam . indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. This is an involved process, requiring the removal of the engine's front end. Information is premium and can save you from errors and spending excessively. The numbers on it are, 3734R/3377R, HR13, I 3996-06. I have no idea whats on the inside. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. If you want to know where the intake centerline is located, all you have to do is install the cam in the engine and then degree the cam. This same pattern was followed throughout the 1997 production cycle. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. JavaScript is disabled. The first two numbers are the degrees of opening being 210 for the intake and 218 degrees for the exhaust given normally at .050 inch of lift. . First Generation Camaro Info and Tech - 1967-1969. All of these applications had the same specs as the initial 1967 application. This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H.O. 14088552 Leave a comment at the end of this post if you cannot find the information you want. 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. Can a Wheel Speed Sensor Cause Limp Mode? 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
