gm camshaft identification numbers10 marca 2023
*54-55 passenger W/PG, 56-58 passenger. Is there any way anyone could hp me out? It means the valve is open at 255 degrees. 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. 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 ? In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. Your email address will not be published. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. There are two easy ways: 1. They are the flat tappet and roller camshaft. However, remember what to do after replacing your camshaft sensor in your car to avoid another frustration. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. I actually went through several lists and made some corrections before making this list. By visual inspection. Step 3 Match the number to a Chevrolet camshaft part number listing. Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. The recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. After working as a reporter in Oregon, he is now based back home in New Haven. How to Get a California Drivers License with an Out of State License, Can You Register a Car Online in Florida? side, aluminum1010617990350.LT5, ZR1, DOHC, 32-valve, drvs. Quick View. 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. If it is an original GM part, these numbers will be there. 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. cam 5054 i am still searching for "Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of . 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 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. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. [] Ask Away! For instance, the number for a Toyota 3SGE would be CS 3SGE. There are 3 different ways to select your camshaft tightly. This hydraulic flat tappet "454" is a good street high-performance and marine cam used in the Gen V 454 H.O. CAM 6930 1967 CAMSHAFT ID. 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. CAM 6964 1969 CAMSHAFT ID. First Generation Camaro Info and Tech - 1967-1969. The next two numbers are the valve lift of . GM was looking for a more powerful engine for the CTS-V and ZL1 Camaros. 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. Step 2 Locate the ID number on the camshaft. The car has all orig drive train, Except for fuel injection and headers. Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? Different chamber volumes, port volumes, port locations, valve sizes, etc. These markings will usually be in the center of the camshaft, obviously in between the valve lobes. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. This is a job for professionals and the mechanically-inclined. Anyone know whos cam this is. That particular cam put my son's pump-gas 406" SB Chevelle to an 11.80 E.T. Some enthusiasts just compare the opening and closing points of the intake with the cam card but this isnt as reliable as the intake centerline method. Quick View. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. I only put the numbers here that I can prove, so this is a short list. Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. Stamp numbers are engraved by the manufacturers to monitor production and distribution. CWC is the foundry that cast the cam blank. Locate the ID number on the camshaft. i have a 383 chev engine ibought and would like to know what cam is in it. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. Retired GM employee, John Hinckley, an NCRS Master Judge, explains the one number . 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). I'll post up a pic as well. The 8th digit of the VIN. 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. with Jeff Smith: How to Decode a COMP Cams http://www.onallcylinders.com/Jeff Smith: First of all, the CC refers to COMP Cams. Stock GM LS engine cams feature LSA anywhere from 116 to 121 degrees because GM is concerned with creating a very smooth idle. Less overlap generally produces a more stable idle while more overlap makes the idle lumpier. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. Match the number to a Chevrolet camshaft part number listing. Can a Bad Battery Cause a Check Engine Light to Come On? On the outside there is a Carter AFB 9637 (625CFM) sitting on an Edelbrock manifold. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. The exhaust number also comes through some time, maybe if you see digits like 266/288; the second shows the exhaust number. Do You Get a Ticket in the Mail for Passing a School Bus? It has a taper inside the lobe which ensures the lifter can spin. The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . There are other camshafts that can be viewed in this category, they include: SOHC means simple overhead cam. Anyone have any idea what make and specs are of this cam? 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. 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. Chevy V8 Casting Number Locations. 14088552 Leave a comment at the end of this post if you cannot find the information you want. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: A roller camshaft has its wheel attached to the bottom of the lifters body. order on 8.1L big block engines is different than a normal big block. 4270 H11 then letters CC vertically, then CB6554 can you tell me the specs on this cam? 49 BBC -6 ATC 223 78 BBC 32 ATC 290 .298 .447 . Each number has a meaning and an interpretation. That number is actually the casting number of the camshaft, not the part number. Chevy LSX454 Camshaft. 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 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. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. Getting a camshaft can be a burden on many car owners; it works well when you have the right one. I was given a can that has the #s Speed isnt a problem with a dual camshaft and it increases the engines power. Good Day: many years ago! Using stamped numbers and. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. 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. Identifiers: Letter R, CWC, EP1, C4 and E8. .390 .410 310 320 1.50 in 1968, it was the cam for the 307/200hp; 327/210hp, 250hp, 275hp, 300hp; and 350/295hp. Chevy V8 BBC Block and Head Casting Numbers. 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 cam is in very good used condition and will likely be reused. 330864: 1968 through 1991 oval port, open chamber, 2.06 in. 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 On the shaft the #'s 1539 are stamped in one spot, and CWC is stamped in another spot. can you help me to decode this cam . 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. A pushrod is a metal tube constructed to transfer the valve motion of a lifter riding on the camshaft directly to the value. Chevrolet LS7 Camshaft. The Chevy Big Block's Camshafts can be identified by a number that is cast or stamped and is usually located in between the CAM 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. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. The grind number is the ever noted number, far and more recognized than the model number. They are not flat, and they are recognized with a slight crown on the face. Understanding Cam Design. Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. Small Block Casting numbers Use these casting numbers to identify the exhaust manifolds you have. View (5) $203.95 More Info. 4485B 4391B HR112+4 R (with a line under the R ) then CC and at the bottom G1979-14. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Your camshaft is important; your engine isnt meaningful without the contribution of the Camshaft. All of these applications had the same specs as the initial 1967 application. The Chevy part number for that cam is 3896929. Can You Register a Car in a Different Name than on the Title? The specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. You can make a sure bet by just selecting randomly but your engine life will be in big problem. You can also use an analog system to identify unknown camshafts. On this cam card, you will see the LSA is 112 degrees. Any info helps, or where I can find. I dont have any numbers. And there is a CR inscribed as well off the lower left (396 BBC), Is this enough information to get the specs on this cam? On the home page, we looked for the Information tab and then clicked on Catalogs. 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 . The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). 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. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. How Long Does it Take to Replace a Catalytic Converter? 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 ? indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. My grandfather was one of their 1st employees when they started out as Cambell, Wyant, and Cannon back in the early 1900s. It doesnt add to the function of the camshaft, nor does it play an important role. To decipher these codes, we accessed COMPs website at compcams.com. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application. 25-12. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. 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. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. DOHC is a production to improve the volumetric of the internal combustion engine in which it has more power than a simple overhead cam. Ford Au part no ! GM 6930 , 6964 and 5054. The Fora platform includes forum software by XenForo. Below is some reference data for cylinder head casting numbers with valve sizes, years used, etc. p/n 12560967, .466/.457, 191/190, 114 LSA. diameter $850.12. * 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. Learn how your comment data is processed. Chevy V8 "W" Motor 348-409 Casting Numbers. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. The 7661-11 is a serial number specific to that camshaft only. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. Run-out on. Terms of Service. 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. Any help much appreciated. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. Drivetrain: '95 T56, pro 5.0 shifter, hayes clutch, Stock 10 bolt with 3.42's Jeff Smith: First of all, the CC refers to COMP Cams. If you are confused as to which cam you should buy for your beast, Crane has you covered. Also can i safely run the Xtreme Energy, XR294HR on my 383 Vortec 906 heads and screw studs ? Smith began writing for Car Craft magazine in 1979 and became editor in 1984. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. Are you a newbie in dealing with cars and you seem not to know how useful a camshaft is and what is used for? i have a 383 chev engine ibought and would like to know what cam is in it. This will give you the intake centerline. (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. $426.78. Canadian made ERTEL brand. Im looking into a cam to suit small block ford. CAMSHAFT SPECIFICATIONS Part No. (Yes or No). Don't forget to follow us on Facebook, and if you run a website or write for a blog, please link to our site! 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. Add the two numbers together and divide by 2. Oct 8, 2010 #2 Z z28rod Veteran Member Apr 30, 2009 4,472 hopewell junction,ny Reading a Cam Card: Advance So why did this cam not have a lope to it in the 283, from everything I am reading long . The suffix provides the. Learn more about: Cookie Policy, Will a 50 Inch TV Fit in my Car? (See below.) Chevy V8 SBC Block and Head Casting Numbers. That gives us our first clue where to look for the rest of the numbers. Can you tell me the specs on this cam from these numbers? The only thing we dont know from these number is the cams intake centerline. 2. 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. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. They provide average torque to the valves. How Long Does it Take for Oil to Drain Back into the Pan? I have a fessler roller cam trying to identify the grind specs. It is 8 figured random numbers and sometimes 9 figures with the last 4 numbers identifying the specific function of the Cam Shaft. I can't help you in regards to who actually did the final grinding. A good understanding of these factors will assist you in making a wise decision. I have a new cam was told it was a comp cam # 1136 230780 any ideas on cam specks. The prefix consists of five digits and explains the date and the location of the Chevy's manufacture. 10186060 Hydraulic Flat Tappet "454". Trying to find the specs on this camshaft. The greater number of degrees means there is less overlap between the intake and exhaust lobes. exhaust valves. Discussion in 'The Hokey Ass Message Board' started by indestructableforce, Nov 13, 2012. The easiest way to get the best is to check the numbers in between the lobes or boxes. 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. They are not so much of the speeding type. 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.
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