eBay Product ID (ePID) 2320190292. The car has all orig drive train, Except for fuel injection and headers. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. 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. journal.3.00" stroke3849847.283.forged..small journal.3.00" stroke3876764.283.forged or cast..sm. Identifiers: Letter R, CWC, EP1, C4 and E8. 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. Used on RPO: L86 (1980-1991). 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. Could someone help me identify these cam numbers ? 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. (Advanced five degrees; use spring P/N 3970627.) At one time they supplied 85% of the blanks in the world. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. Compare Related Articles. The recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. Privacy Policy. 4226 what kind of camshaft is it. Any time you are making this kind of important decision about your engine, it's . The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . Chevrolet LS7 Camshaft. Under that heading toward the bottom we found a tab for the Cam Lobe Master Catalog. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). Below is some reference data for cylinder head casting numbers with valve sizes, years used, etc. And there is a CR inscribed as well off the lower left Thank you, if you can help, send me an e mail and I will send you a picture. Stamp numbers are engraved by the manufacturers to monitor production and distribution. I have more than 4 Camaro's am I Addicted? Jeff Smith: First of all, the CC refers to COMP Cams. This is a COMP Cams timing card. I was given a can that has the #s I suspect you have . The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. Can You Register a Car in a Different Name than on the Title? 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. 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. This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. How to Start a Car with a Blown Head Gasket (Explained). 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. Small Block Chevy Factory Camshafts . Im looking into a cam to suit small block ford. Then do the same process with the lobe at 0.050 on the closing side. If you don't have the VIN, you can still identify the engine by visual inspection if you know what to look for. Personally, I would trash the cam and go buy a new cam and lifter set that you know what the grind is. Step 2 Locate the ID number on the camshaft. To decipher these codes, we accessed COMPs website at compcams.com. The 7661-11 is a serial number specific to that camshaft only. The LS . The Fora platform includes forum software by XenForo. 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 ? 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. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: 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. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. Quick View. 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). Displacing 2.4 liters in an inline-four configuration, the LEA is part of the Ecotec engine. They appear to be a rock arms with a small diameter. My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. Less overlap generally produces a more stable idle while more overlap makes the idle lumpier. Step 3 Match the number to a Chevrolet camshaft part number listing. Your email address will not be published. 14088552 Leave a comment at the end of this post if you cannot find the information you want. I can't help you in regards to who actually did the final grinding. All of these applications had the same specs as the initial 1967 application. 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 I have a 1969 z28 I bought a few years back from a friend who was orig owner. It's a 10168588 casting that had the numbers "4.3" cast on the side, too. They dont add to the function of the camshaft itself. i have a 383 chev engine ibought and would like to know what cam is in it. Old school Comp 9000 Mallory Distributor and coil. The Fora platform includes forum software by XenForo. . There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. The pushrods cam stays above the cylinder, which is always above the combustion chamber. GM is recalling seven. 330545..73350.76cc chamber, 2.02/1.60333881..74-75350.76cc chamber, 2.02/1.60333882..74-80350/40076cc chambers340292..70's.Over the counter, angle plug, 64cc chamber354434..75-79262/267/30560cc chambers358741..76-79305376445..77-85350.76cc chamber, small valves376450..75-81262/267/305..6 or 7 exhaust bolt holes, 60cc chamber462614..77-79305.60cc chamber462624..75-86350/40076cc chamber, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves458642..75-84350.350468642..76-up350/400471513..79267/350517513..79267/3501816887.63283.Made in "Canada", GMC HD truck3636839.552653703523.552653713358.55-562653713569.55-562653725306.562653731539.57283.283 HP FI3731544.57-612833731554.57-622833731556.57283.Truck, Made in Canada3731762.56265.Vette, 2x4 carbs3737775.62-67283/3273740997.57283.1x4, 2x4 & FI (exc.-283hp)3743056.582833743096.62-67327.GMC Truck3747363.57-612833747460.59-67283/32770cc chambers3748770.582833748772.58-612833755537.57-622833755549.57-622833755550.592833755585.62-67327.GMC Truck3767460.59-602833767462.62-673273767465.59-612833767754.59-61283.60cc chambers3767792.60-642833774682.60-64283/32770cc chambers3774684.62-64327.75cc chambers3774692.58-64283.60cc chambers3782461.64-66327Camel hump,no accessory holes,160/62cc port volumes,62cc chamber3782461X60-63283/327..Camel hump,no accessory holes,larger 172/64cc port volumes, 62cc chamber3795896.63-6528360cc chamber3795896.62-6432760cc chamber3798996.63-673273814480.60-67283/327..70cc chambers, 1.72/1.5 valves3814482.62-67283/327/350..75cc chambers3817680.63-67283/3273817681.62-673273817682.61-622833836839.552653836842.57-67283/3273837064.56-62265/2833837065.55-56265.Truck3848720.57-582833876775.60-67283/32775cc chamber3884520.60-67283.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3884520.62-67327.Some marked "Made in Canada", 60cc chamber, also used by Studebaker3890462.66-67302/327/350..Camel hump,no accessory holes,64cc chamber3901068.87-up350.Crate motor, 285hp, 64cc chamber3911032.68307/32770cc chamber3912264.58-622833912265.63-642833912311.65-673273912313.65-673273917290.67-68307/3273917291.67-68302/327/350..Camel hump,no accessory holes,64cc chamber3917292.68327/350Camel hump,64cc chamber3917293.67-68307/32775cc chambers3927185.69-76307/327/350..70cc chambers3927186.69-70302/350Camel hump,64cc chambers,accessory holes3927187.69-70350.Camel hump,64cc chambers,accessory holes3927188.69327.74cc chambers3927188.70307.74cc chambers3931633.68-733073931635.68-763503931638.68327.Truck3932441.69-70350.76cc chambers3932441X69-70350/40080cc chambers3932454.69-733073932454.69-79350.Truck3946812.693503946813.69-79350.Truck3947040.68327."Right angle" casting identifier, 64cc chambers, good HP head,used in trucks, no accessory holes3947041.69-70302/350"Right angle" casting identifier, 64cc chamber, accessory holes, good HP head3947041X69-70302/350"Right angle" casting identifier, 64cc chamber, 165cc intake port, accessory holes, good HP head3951598.70400.76cc chambers39642863503965742.70350.over the counter, angle plug3970126.67-71327/3503973370.69-70350.over the counter in US, Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug3973414.70350.LT1-350/370hp, Camel hump, 64cc chamber3973487.71-72350.1.94/1.5 or 2.02/1.6 valves, was also used on '71 350/330hp LT1, 75cc chamber3973487X71-72350.1.94/1.5 or 2.02/1.6 valves, 75cc chamber3973493.71-72400.76cc chamber3986316.71350.76cc chamber3986336.71350.76cc chamber3986336X71350.76cc chamber3986339.71307/35074cc chamber3986339X71307/35074cc chamber3986388.68-76307/3503991492.70350.LT1,Camel hump,accessory holes,64cc, straight plug3991492.70-up.over the counter,Camel hump,64cc, straight or angle plug3998916.72350.also used w/'72 350 LT1, big valves, screw in studs, 76cc chambers3998920.72-733503998991.72-73307/35075cc chambers3998993.72-73307/35075cc chambers3998993.current..350Goodwrench crate motors,"Hecho en Mexico", 75cc chambers3998997.72-73350/40076cc chambers3998997.78-84305/35076cc chambers4079261.7535010033867Aluminum,over the counterPontiac 23' head,62cc,angle plug, 196cc intake port10045434Over the counter Pontiac 15' head 55cc, angle plug, raised runner aluminum, "roll over" head10051101Bowtie, aluminum, 55cc, angle plug raised runner, 196cc intake port1006520287-95350.Truck1006520387-95350.Truck1006520487-953501006520587-953051006520687-953501006520787-953051008811388-up350.Aluminum, 58cc, angle plug, raised "D" port exhaust, 1.94"/1.5" valves10093328Over the counter, Pontiac 15' head aluminum,224cc ports, 61cc chambers "roll over" head1010617890350.LT5, ZR1, DOHC, 32-valve, pass. **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. We compared these specs to the catalog and because there is no list number on the end of the cam, we will assume this was a custom-ground camshaft. On this cam card, you will see the LSA is 112 degrees. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. It's real easy to spot if the heads are off because of the small 3.74" bore. SBC Block Casting Numbers. Reading a Cam Card: Advance There are 3 different ways to select your camshaft tightly. 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. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . They are the flat tappet and roller camshaft. Chevy V8 Casting Number Locations. 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. However, most cams intended for street use are ground with several degrees of advance. Thanks for any info I Think its a crane cam but I cant match the stamped numbers anywhere. Its got a great loping idle (big cam?? 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. Learn more about: Cookie Policy, Will a 50 Inch TV Fit in my Car? Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. Example: 63402A-2 enter 63402A The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. Only show this user. 0967 is the last four digits of the GM part number. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. 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. The engine also had smaller 1-1/8? Any way to to determine the type of cam from the outside? intake and 1.72 in. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. I am partially colorblind so they may be sort of tanish as well. 285/300hp, 64cc chambers, 1.94"/1.5" valves1401441580-85267/3051401441680-86305.1.84"/1.5" valves, 58cc chambers1401444080305.1.84"/1.5" valves1401982180-863501401992479-812671401992680-863501401051680-86350140205178035014020555813051402055681350140220568535014022206803501402230180-863051402260180-86267/3051.72"/1.5" or 1.84"/1.5" valves, 53cc chambers1402280180-8630514024816..350.76cc chambers, 1.94/1.5 valves, Gen.I crate motors1403480678-822671403480778-863051403480880-863501403480896-up350.76cc chambers, 1.94"/1.5" valves, Gen.I Goodwrench crate motors1403481080-86350.Truck1403481180-86350.Truck1403912181-86305.Truck1403912281-86305.Truck1407111480-863501407538180-86350.Truck14079261863501408584480-86350.Truck140859638635014088526..350.Gen.II, LT1, aluminum1408911986-883501409409386-883501409621780-96350.Crate motor, 285hp/300hp, 64cc chambers, 72' or 90' center intake manifold bolt angles1410108187-953051410108387-up350.Gen.I, also used on crate motors, 285 or 300 hp, 64cc chambers, 72' center manifold bolt angles1410112886-87350.Aluminum, 58cc, angle plug1410218787-91305.1.84"/1.5" valves1410219187-up3501410219387-up350.1.94"/1.5" valves22542525Dart/Olds/Chevy aluminum, 14'or 17' race head.2450255996-97.Bowtie, "SB2", 1st version, "mirror ports", aluminum, 196cc port, CNC version 280cc port, 38cc chamber25500141Buick/Chevy aluminum, 10' race head, 42cc chambers, symmetrical ports, 235cc intake port volumes, 2.1"/1.625" valves25534351C..04-up.Gen.I Bowtie, cast iron Vortec head, 175/65cc ports, 2.00/1.55 valves, "small port head"25534371C..04-up.Gen.I Bowtie, cast iron Vortec head, 206/77cc ports, 2.00/1.55 valves, "large port head"3341736990-up350.Gen.I Goodwrench crate motor,"Hecho en Mexico", 76cc, 0-3267114-bolt, Alum., CanAm, 4.44" bores, steel cylinder liners340220..427T68-854-bolt345014..454.70-86346236..454.75-762-bolt359070..454.70-90361959..454.73-902 or 4 bolt364776..427T68-854-bolt364779..366T68-904-bolt399204..509.70-714-bolt, Alum., CanAm, 4.5" bores, steel Cylinder liners399293..366T77-784-bolt473478..427T77-904-bolt495102..4-bolt, Alum., CanAm, 4.5" bores3782870.427T68-764-bolt3824553.366T66-674-bolt3855961.396.65-662 or 4 bolt3855961.427.662-bolt3855962.396.65-664-bolt3855977.366T66-734-bolt3869942.427.66-672 or 4 bolt3902406.396.672 or 4 bolt3904351.427.672 or 4 bolt3904354.366T66-764-bolt3916319.366T684-bolt3916321.427.682 or 4 bolt3916323.396.682 or 4 bolt3925521.427T68-854-bolt3935439.427.68-692 or 4 bolt3935440.396.68-692 or 4 bolt3937724.366T68-854-bolt3937726.427T68-844-bolt3946052.427.694-bolt, Alum. Which cam are you refering to that helped your son achieve 11.80? In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. ZL-1, 2nd version, Mark IV3955270.427.692 or 4 bolt3955272.396.692 or 4 bolt3955274.366T68-854-bolt3955276.427T68-734-bolt3963512.427.692 or 4 bolt3963512.454.70-762 or 4 bolt3969852.366T68-844-bolt3969854.396.692 or 4 bolt3969854.402.70-722 or 4 bolt3969858.427T68-844-bolt3999289.454.71-792 or 4 bolt, some "CE" replacement blocks had four bolt main caps3999290.396.68-692 or 4 bolt, Truck3999290.402.70-722 or 4 bolt, Truck3999290.402.722 or 4 bolt, Passenger3999293.366T68-904-bolt3999294.427T68-844-bolt100511074544-bolt, Bowtie, MkIV, 9.8" deck, siamesed bores, 4.25" semi-finished bores, can be bored to 4.50"10069282366T90-914-bolt, Mark IV, Tall deck10069284427T..4-bolt, Mark IV, Tall deck10069286454.90-914-bolt, Mark IV, Short deck10114182454.91-up4-bolt, Gen.V10114183366T91-up4-bolt, Gen.V10114184427T91-up4-bolt, Gen.V10134366454T..4-bolt, Bowtie, Gen.V, Tall deck101850504544-bolt, Bowtie, Gen.V, Short deck10237297454.96-up4-bolt, Vortec 7400", "L-29" Gen.VI10237299427T96-up4-bolt, Gen.VI, 7.0L, truck10237300502.96-up4-bolt, Gen.VI, 4.466" bore12550312427T96-up4-bolt, Gen.VI, 4.250" bore, fuel pump boss, clutch linkage pivot boss12550313454.91-up4-bolt, Gen.V crate motor, Gen. VI 4.25" bare block, fuel pump boss12556110496.01-up4-bolt, Gen.VII 8.1L, "Vortec 8100", Truck12561357454.96-up4-bolt, Gen.VI125613585024-bolt, Gen. VI14015443454.87-902 or 4-bolt, Mark IV, Truck, Motorhome14015445454.78-902 or 4 bolt14044807454T..4-bolt, Bowtie, MkIV, CNC prep, Tall deck, 4.25" bore or 4.495" bores, 191659554541996-2001 L29140968595024-bolt, Gen.V, HO245025044544-bolt, Bowtie, Gen.V, Race prep, 9.8 "short" deck height24502506454T..4-bolt, Bowtie, Gen.V, Race prep, 10.2 "tall" deck height245025724-bolt, 4.5" bore Olds DRCE 2, 9.5" deck height255344024-bolt, 4.590" bore Olds DRCE 3, 9.25" deck height. The next information engraved on the cam was HR 114. How Long Does it Take to Replace a Catalytic Converter? Can a Wheel Speed Sensor Cause Limp Mode? The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. How Long Does it Take Transmission Fluid to Circulate? There are two types of cams that you can tell the difference without using a lens or going the extra mile to tell the difference. 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). (Yes or No). Sept. 2019 Drag-Week Winner - N.Y. Legal Streeter - 1956 Chevy Bel-Air, http://www.msnusers.com/Chrisjunque/shoebox.msnw?action=ShowPhoto&PhotoID=2. The EP1 (not EPI) indicates that it was cast for Engine Power Components. GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. However, remember what to do after replacing your camshaft sensor in your car to avoid another frustration. For a better experience, please enable JavaScript in your browser before proceeding. Contact. The only thing we dont know from these number is the cams intake centerline. I bought a 34 Ford pickup with a 302 installed. Car AC Compressor Not Turning On (Causes and Quick Fix). Anyone know whos cam this is. Any info helps, or where I can find. To be sincere, flat tappet just owns the name flat. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. This will give you the intake centerline. Chevrolet "Stock" LS Camshaft. 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. (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. CWC is the casting ID for CWC Textron. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. Stamped on end is Z099, also has three pink dots above that stamping. The LEA is an engine produced by General Motors for a wide variety of compact and midsize vehicles. On the shaft the #'s 1539 are stamped in one spot, and CWC is stamped in another spot. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Speed isnt a problem with a dual camshaft and it increases the engines power. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. Chevy Intake Manifolds GM used a forged crankshaft, oil-spray cooled Hypereutectic pistons, and a hydraulic roller camshaft made to handle boost. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. Understanding Cam Design. How does this compare to the 69 dz 30/30/ cam? The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. 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 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. With your cam it might come out to somewhere between 114 to 110 degrees depending on if the cam was machined with advance. A call to Comp at 1-800-999-0853 will probably give you some more details. 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. There are 3 different ways to select your camshaft tightly. The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883. ZL-1, Mark IV3946053.427.97-up4-bolt, Alum.

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