gm camshaft identification numbers

The suffix provides the. Can you guys help me pick a cam and fix my combo? It is typically located in the center of the cam between the lobes. $799.00 +$36.00 shipping. It's a stock cam. no idea) and only pulls about 10psi vac at idle. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. By visual inspection. (You must log in or sign up to reply here. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. After working as a reporter in Oregon, he is now based back home in New Haven. 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. 25-12. Anyone know whos cam this is. Chevy V8 SBC Block and Head Casting Numbers. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. The Fora platform includes forum software by XenForo. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? were used. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. This an original 1966 283 camshaft casting number is 3732798, hydraulic lifters. .390 .410 310 320 1.50 in 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 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. To Develop Good Eye Habits While Driving You Should? 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. Chevy Intake Manifolds These spec are for cam install @108 intake ctr line duration @.050 intake 236 ext 242 lobe lift .3470in .3600 ext lobe selection 112.0 where do I set my timeing for first start ? journal.3.00" stroke3876768.283.forged..small journal.3.00" stroke3884577.327.forged..small journal.3.25" stroke3892690.350.forged..medium journal3.48" stroke3911001.307,327cast.medium journal3.25" stroke3911011.307,327cast.medium journal3.25" stroke3914672.327.forged..medium journal3.25" stroke3923279.302.forged..medium journal3.00" stroke3932442..267,305,350..castmedium journal3.48" stroke3941174.307,327cast.medium journal3.25" stroke3941178.302.forged..medium journal3.00" stroke3941182.350.forged..medium journal3.48" stroke3941188.350.forged..medium journal3.48" stroke3949847.283..forged or cast..sm. Manufacturer Part Number. This advances the intake centerline by that number of degrees. (Yes or No). This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H.O. What Happens When the Turbo Goes on a Diesel? In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. 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. 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. 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. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. They are widely used and they perform well, which is more affordable than a roller cam. I actually went through several lists and made some corrections before making this list. I know that Chevy Casting Numbers are on several sites on the World Wide Web but I thought it would be a good idea to list them here too. There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. Thanks for any info I Think its a crane cam but I cant match the stamped numbers anywhere. Show More Show Less. I have 3.55 geArs and a 3600 stall. intake and 1.72 in. 1014789895-98350.Gen.I crate motor1015955087-953501015955187-953051015955287-953501015955387-953051017438991-94350.LT5, ZR1, DOHC, 32-valve, drvs. Also there is a Blue dot just under the distributor drive gear. In 1967, it was the cam for the 283/195hp; 327/210hp, 275hp, 300hp; and 350/295hp. GM is recalling seven. They include: Identifying with your eye. To avoid spinning, roller lifters are lifted together. Speed isnt a problem with a dual camshaft and it increases the engines power. It's a used cam and it has this barcode on it. Also a great fitting cam for the earlier 302 or 327 Solid lifter Hi-Po motors used by Corvette, Nova or Camaro. I just rebuilt the carb as it was pretty dirty and leaked at the accel pump. The recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. The numbers on it are, 3734R/3377R, HR13, I 3996-06. Their outer look tells the difference. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. Run-out on. 14088552 Leave a comment at the end of this post if you cannot find the information you want. There are at least 6 different versions as of 11/99. Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. The best way to identify an unknown camshaft is by identifying it with your eye or using stamped numbers engraved on the camshaft to identify it. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. The EP1 (not EPI) indicates that it was cast for Engine Power Components. Chevrolet "Stock" LS Camshaft. motor could have casting number 10112391 or 10112391S that is the service replacement. Stock GM LS engine cams feature LSA anywhere from 116 to 121 degrees because GM is concerned with creating a very smooth idle. 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. 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. Step 2 Locate the ID number on the camshaft. 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. 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. 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. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. 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. I am partially colorblind so they may be sort of tanish as well. A DOHC is known as a dual overhead cam. And there is a CR inscribed as well off the lower left This card reveals the basic information you need to identify, properly install, and degree the camshaft in the engine. With your cam it might come out to somewhere between 114 to 110 degrees depending on if the cam was machined with advance. CAM 6930 1967 CAMSHAFT ID. Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. I have a Pontiac camshaft with 960938 number on the backside. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. CWC is the casting ID for CWC Textron. News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . 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. They are not so much of the speeding type. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. They dont add to the function of the camshaft itself. The exhaust number also comes through some time, maybe if you see digits like 266/288; the second shows the exhaust number. This is what is on the cam, it would not let me past a picture here. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. 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. Stamped numbers are 529506 and 031531. (396 BBC), Is this enough information to get the specs on this cam? order on 8.1L big block engines is different than a normal big block. 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. 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. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. I tried searching & googling these markings with no luck. Step 1 Find the model prefix. Then do the same process with the lobe at 0.050 on the closing side. Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! 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. But this comes at the cost of reduced torque in the middle of the rpm band. 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. GEN III vs GEN IV. 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. Casting numbers used on factory 366ci tall deck engines (some used on multiple engines): *ending 328: 1980 through 1991. Does OnStar Keep Location History? It's for a 99-04 truck. The first three-digit number shows the average duration time of the lobes. 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . JavaScript is disabled. Reading a Cam Card: Advance **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. Crankshaft Identification Use these casting numbers to identify the crankshaft you have. 10186060 Hydraulic Flat Tappet "454". I can't help you in regards to who actually did the final grinding. Four or six-cylinder can be attached to the valves. This is a COMP Cams timing card. A good camshaft cannot be underrated, so you need it to make your engine function well. A 'VE Table' is one of two methods used to control fuel delivery, typically the secondary method with the primary being a MAF (Mass Airflow Sensor).

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