gm camshaft identification numbers

I can't help you in regards to who actually did the final grinding. For a better experience, please enable JavaScript in your browser before proceeding. So why did this cam not have a lope to it in the 283, from everything I am reading long . The "2182" Casting number identifies this camshaft as GM part number 3972182. can you help me to decode this cam . In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. The Chevy part number for that cam is 3896929. Chevy . Manufacturer Part Number. Their outer look tells the difference. I was given a can that has the #s These markings will usually be in the center of the camshaft, obviously in between the valve lobes. This type allows more direct airflow through the engine without having to deal with obstruction. This is a COMP Cams timing card. Drake studied journalism at Southern Connecticut State University. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. Show entries Search: Showing 1 to 10 of 46 entries Previous Next Big Block Crankshaft Casting Numbers Lookup When you purchase through links on our site, we may earn an affiliate commission, which supports our community. side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. Hope weve helped you with a little more camshaft knowledge. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. Using stamped numbers and. Contact. We have a hint because if a camshaft if ground with no added advance, the intake lobe centerline will be the same number as the LSA114 degrees After Top Dead Center (ATDC). force 120hz android The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.4 and 2.5 litres. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. A pushrod is a metal tube constructed to transfer the valve motion of a lifter riding on the camshaft directly to the value. It has a taper inside the lobe which ensures the lifter can spin. (396 BBC), Is this enough information to get the specs on this cam? 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. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! motor could have casting number 10112391 or 10112391S that is the service replacement. If I rotate the camshaft the other side has markings of AO, D14. with Jeff Smith: How to Decode a COMP Cams http://www.onallcylinders.com/Jeff Smith: First of all, the CC refers to COMP Cams. Information is premium and can save you from errors and spending excessively. 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 . Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! engine P/N 10185058. However, most cams intended for street use are ground with several degrees of advance. They are widely used and they perform well, which is more affordable than a roller cam. *54-55 passenger W/PG, 56-58 passenger. The LS . The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. This will help you get the full details directly from the manufacturing, which requires the model and other factors that need attention. At one time they supplied 85% of the blanks in the world. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. If you notice any mistakes or have any additions, use my contact me form and let me know so I can update the list. After working as a reporter in Oregon, he is now based back home in New Haven. 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. ). GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. Crankshaft Identification Use these casting numbers to identify the crankshaft you have. Step 2 Find the profile or grind number. Chevy V8 "W" Motor 348-409 Casting Numbers. 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. The first three-digit number shows the average duration time of the lobes. Can Jumpstarting a Car Damage the Alternator? It's a 10168588 casting that had the numbers "4.3" cast on the side, too. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. Chevrolet LS7 Camshaft. The HI-PO color coded stripes on the camshaft end are green, orange and red. 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. Old school Comp 9000 Mallory Distributor and coil. $426.78. JavaScript is disabled. 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. Step 2 Locate the ID number on the camshaft. That gives us our first clue where to look for the rest of the numbers. 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 . For instance, if you have numbers like 266H04, the last two digits are the numbers used to show the measurement of the lobes. 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. The Fora platform includes forum software by XenForo. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. On the home page, we looked for the Information tab and then clicked on Catalogs. 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. Retired GM employee, John Hinckley, an NCRS Master Judge, explains the one number . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. To Develop Good Eye Habits While Driving You Should? Which cam are you refering to that helped your son achieve 11.80? All of these applications had the same specs as the initial 1967 application. Thanks, Gary in N.Y. P.S. Any advice? Visit www.jamsionline.com to shop today. 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 ? Roller: 202/206 .403"/.415" 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. 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 I have a cam trying to set startup timeing hr112 intake hyd .555 ext .576 duration .006 valve tapping lift 287 in 293 ex valve timing .050 open int 10 close btdc46 abdc exh :57 BBdc 5 ATC. It is a mode of identification used by manufacturers. Less overlap generally produces a more stable idle while more overlap makes the idle lumpier. * 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. That gives us our first clue where to look for the rest of the numbers. I actually went through several lists and made some corrections before making this list. I dont have any numbers. 10186060 Hydraulic Flat Tappet "454". The only stamped markings on the front are 951758. 1 BTC 42 ABC 223 30 BTC 80 ABC 290 .298 .447 114 1.5 HYD EXH. E.g. They are the flat tappet and roller camshaft. Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? Apr 13, 2014 Yeah, it has CR 760 stamped on the back, and then a date under it. 366298.4Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal. They make castings for CMC (Camshaft Machine Corp.) and EPC (Engine Power Components) and others. The engine needs to function by opening the valve with the help of the camshaft. SBC Block Casting Numbers. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. Could someone help me identify these cam numbers ? A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? Dec 31, 2009. This is a job for professionals and the mechanically-inclined. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. It is typically located in the center of the cam between the lobes. 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. 330864: 1968 through 1991 oval port, open chamber, 2.06 in. One of these cams looks unused and the other at best slightly used. Chevy V8 SBC Block and Head Casting Numbers. Im looking into a cam to suit small block ford. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. Hi, I have a cam that trying to figure out the specs on. 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 radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. Drivetrain: '95 T56, pro 5.0 shifter, hayes clutch, Stock 10 bolt with 3.42's Understanding Cam Design. For as simple as this product appears, it is actually a very complicated piece of engineering if you study it closely. Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. (Advanced five degrees; use spring P/N 3970627.) My 1968 Camaro Site. 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. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. 4009f/4024f 68553-06. Each number has a meaning and an interpretation. They dont add to the function of the camshaft itself. 0967 is the last four digits of the GM part number. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. A roller camshaft has its wheel attached to the bottom of the lifters body. The numbers engraved in the body part of the camshaft are called the Stamped number or casting number. On this cam card, you will see the LSA is 112 degrees. Personally, I would trash the cam and go buy a new cam and lifter set that you know what the grind is. A good understanding of these factors will assist you in making a wise decision. Why are Volkswagen Oil Changes so Expensive? 14088552 Leave a comment at the end of this post if you cannot find the information you want. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. This was one of the best selling/most popular cams through the years past! The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. Can a Wheel Speed Sensor Cause Limp Mode? A Solid Lifter Camshaft for 1970 1971 and 1972 Camaro Z28 or Corvette with the 350 LT1 Small Block Motor. With this intake lobe: 0.328 x 1.7 = 0.5576-inch, which COMProunds off to 0.558-inch. 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. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! 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. 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: Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. I have a new cam was told it was a comp cam # 1136 230780 any ideas on cam specks. Any info helps, or where I can find. Required fields are marked *. Trying to find the specs on this camshaft. . side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. It means the valve is open at 255 degrees. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. The cam is in very good used condition and will likely be reused. 25-12. . 2. 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.