Run-out on. 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. Reading a Cam Card: Advance As each engine model comes with a specific camshaft, proper identification is key to finding the right one. journal.3.00" stroke3849847.283.forged..small journal.3.00" stroke3876764.283.forged or cast..sm. It is typically located in the center of the cam between the lobes. Chevy V8 BBC Block and Head Casting Numbers. All you have to do to determine valve lift is multiply the lobe lift times the rocker ratio. The 7661-11 is a serial number specific to that camshaft only. News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. motor could have casting number 10112391 or 10112391S that is the service replacement. One of these cams looks unused and the other at best slightly used. I did a search as well, google and on here. COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM. This type allows more direct airflow through the engine without having to deal with obstruction. A good understanding of these factors will assist you in making a wise decision. To avoid spinning, roller lifters are lifted together. 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. (Yes or No). (Yes or No). The Chevy part number for that cam is 3896929. 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). A stamp is not a functioning part of a camshaft. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. 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. . Quick View. 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. That gives us our first clue where to look for the rest of the numbers. *54-55 passenger W/PG, 56-58 passenger. $799.00 +$36.00 shipping. order on 8.1L big block engines is different than a normal big block. . 210/218 at 0.551/0.556 at 113 degrees . Crankshaft Identification Use these casting numbers to identify the crankshaft you have. ). 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. 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 1995 Chevrolet C1500 5.7L - obd1 - service engine code 32 - replaced map sensor and cleared codes but continues to throw code that map sensor has low voltage. 2. Once we found the hydraulic roller section, the first column lists each lobe by number. (Advanced five degrees; use spring P/N 3970627.) The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. Drivetrain: '95 T56, pro 5.0 shifter, hayes clutch, Stock 10 bolt with 3.42's Locate the ID number on the camshaft. PG,63 4WD 1st series. In 1974, it was the cam for the 350/145hp, 185hp, 195hp; and 400/150hp, 180hp. Contact. 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. Im looking into a cam to suit small block ford. CWC is the foundry that cast the cam blank. Looking for 4311-4314-r106 Q 7388-04 CAN ANYONE TELL ME WHERE I CAN LOOK THE SPECS UP! This number should be on your camshaft, followed by a number of degrees. You can also use an analog system to identify unknown camshafts. Is there any way anyone could hp me out? many years ago! GM is recalling seven. (396 BBC), Is this enough information to get the specs on this cam? 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. 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 . $426.78. This advances the intake centerline by that number of degrees. Thank you, if you can help, send me an e mail and I will send you a picture. Also a great fitting cam for the earlier 302 or 327 Solid lifter Hi-Po motors used by Corvette, Nova or Camaro. 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 have a 1969 z28 I bought a few years back from a friend who was orig owner. 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. The engine needs to function by opening the valve with the help of the camshaft. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). Add the two numbers together and divide by 2. The car has all orig drive train, Except for fuel injection and headers. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. side, aluminum1022512295350.LT5, ZR1, DOHC, 32-valve, pass. 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 specs you have listed above for that 115835 part number is correct, the L/S is 109* instead of 110*. It helps you know the compatibility of the camshaft to the supposed vehicle you want to use it for. They make castings for CMC (Camshaft Machine Corp.) and EPC (Engine Power Components) and others. It's a stock cam. Drake studied journalism at Southern Connecticut State University. That number is actually the casting number of the camshaft, not the part number. The next two numbers are the valve lift of . I suspect you have . How to Catch Someone Putting Nails in Your Tires (5 Best Ways), Method 2: You can Identify with Stamp Numbers, what to do after replacing your camshaft sensor in your car. Check this castingcarefully to determine which features it may have. The last 3 digits of the number of the CASTING is frequently very close but not the same as the PART number of the camshaft assembly. You can make a sure bet by just selecting randomly but your engine life will be in big problem. Understanding Cam Design. The 8th digit of the VIN. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. 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. 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. The chevy part number for that cam is 3896929. They are not so much of the speeding type. The Fora platform includes forum software by XenForo. ** Free Shipping for Engines & Transmissions* Learn More; 0; 888.284.7491 . Camshafts are stamped by the manufacturers as a means of identification. Any info helps, or where I can find. I have a fessler roller cam trying to identify the grind specs. Because the camshaft orchestrates the entire valve system, your Chevy won't run properly without it. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Can I Drive my Mercedes With Check Engine Light On? Apr 13, 2014 Yeah, it has CR 760 stamped on the back, and then a date under it. 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 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. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. 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. (Yes or No). Can you tell me the specs on this cam from these numbers? i have a 383 chev engine ibought and would like to know what cam is in it. 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. Stamped on end is Z099, also has three pink dots above that stamping. Ford Au part no ! 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. The car came with the two cams you identified above, Stored in cardboard tubes, With the #5054 & date 1971 stamped on tubes. I'll post up a pic as well. 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. 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. In 1998, head c/n 24575507 arrived with a heart-shaped combustion chamber against a D shape. 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. side, aluminum1017439091-95350.LT5, ZR1, DOHC, 32-valve, pass. They include: Identifying with your eye. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. 4270 H11 then letters CC vertically, then CB6554 can you tell me the specs on this cam? We have it in internal combustion engines and some electric motor speed controllers. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. Retired GM employee, John Hinckley, an NCRS Master Judge, explains the one number . Apr 19, 2020 Just to be clear, are those the numbers on the face of the cam behind the timing gear? With your cam it might come out to somewhere between 114 to 110 degrees depending on if the cam was machined with advance. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. In 1972, it was the cam for the 307/130hp; and an optional cam for the 350/165hp, 175hp, 200hp; and 400/170hp. Speed isnt a problem with a dual camshaft and it increases the engines power. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Any advice? Switching to Synthetic Oil After 100k Miles: Pros and Cons. A Solid Lifter Camshaft for 1970 1971 and 1972 Camaro Z28 or Corvette with the 350 LT1 Small Block Motor. If you don't have the VIN, you can still identify the engine by visual inspection if you know what to look for. In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. item 7 1957-1963 Corvette Camshaft GM 3736098 Solid Lifter 283 Sp Hi Perf 327/340 360hp 1957-1963 Corvette Camshaft GM 3736098 Solid Lifter 283 Sp Hi Perf 327/340 360hp. The easiest way to get the best is to check the numbers in between the lobes or boxes. Show entries Search: Showing 1 to 10 of 46 entries Previous Next Big Block Crankshaft Casting Numbers Lookup $850.12. The numbers engraved in the body part of the camshaft are called the Stamped number or casting number. After working as a reporter in Oregon, he is now based back home in New Haven. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and 0.328-inch lobe lift. 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. They appear to be a rock arms with a small diameter. 366298.4Bowtie, Aluminum, billet main caps, 3.398" bore with sleeves, two piece rear main seal. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. COMPCams uses two-number designations for all its engine families. Manufacturer Part Number. The prefix consists of five digits and explains the date and the location of the Chevy's manufacture. Each number has a meaning and an interpretation. The greater number of degrees means there is less overlap between the intake and exhaust lobes. This is a COMP Cams timing card. I actually went through several lists and made some corrections before making this list. intake and 1.72 in. How does this compare to the 69 dz 30/30/ cam? It's a used cam and it has this barcode on it. I was given a can that has the #s To be sincere, flat tappet just owns the name flat. Terms of Service. Identifiers: Letter R, CWC, EP1, C4 and E8. At one time they supplied 85% of the blanks in the world. The radiator, hoses, timing assembly, belts and fan will need to be removed to access the camshaft. However, remember what to do after replacing your camshaft sensor in your car to avoid another frustration. E Hope weve helped you with a little more camshaft knowledge. The next information engraved on the cam was HR 114. Remove the camshaft from the engine if necessary. 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. What are your thoughts on the #5054 or anything else? Anyone know whos cam this is. Any way to to determine the type of cam from the outside? diameter indestructableforce - 6930 is the last four digits of the cam's casting number, 3896930, which also has a horizontal diamond for the casting symbol. From the distribute drive gear down are the folloing markings: CWC, 06, C14, EP1. 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 ? GM 6930 , 6964 and 5054. However, most cams intended for street use are ground with several degrees of advance. (See below.) 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. JavaScript is disabled. 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. In 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. Grind numbers are HR 224/339. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. 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. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. were used. **Due to the COVID-19 pandemic a large number of products are on backorder and shipping times are longer then usual. Every engine needs a timing device that can control the opening and closing of the intake and exhaust valves. Can You Register a Car with a Bill of Sale and No Title? If it is an original GM part, these numbers will be there. The GM tube has the ID number as 3863151 which correlates to a L79 Cam however the stamping at the end is 920883. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. Part Number: Type: DUR @ .050" Lift: C/R: LSA: Usage: 14093643: Hyd. 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. Do not enter the -2 on dual cams part numbers or the (I) that indicates intake or (E) for exhaust. the 4.3L LT1 was also referred to as the L99 (not to be confused with the LS variant bearing the same name) 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. For instance, the Duntov cam has a GM part number 3736097 but cast into the camshaft is the number 3736098. If you are confused as to which cam you should buy for your beast, Crane has you covered. journal3.00" stroke3951130.327.forged..medium journal3.25" stroke3951529.400.cast.large journal.3.75" stroke, 10168568265.cast.medium journal3.00" stroke12552215364.cast.medium journal3.62" stroke, Gen. III, 6.0L12552216325,350,364.cast.medium journal3.62" stroke, Gen. III 5.7L LS1, 5.3L, 6.0L12553312293.cast.medium journal, 3.27" stroke, Gen. III, 4.8L12553482293.cast.medium journal, 3.27" stroke, Gen. III, 4.8L14088526305,350cast.medium journal3.48" stroke14088532350.forged..medium journal3.48" stroke14088535305,350cast.medium journal3.48" stroke14088552350.forged..medium journal3.48" strokeZR1, "LT5", 350 DOHC, 10106122350.forged..large 2.76" journal3.66"stroke, BBC TWO PIECE REAR MAIN OIL SEALS 3.76" STROKE used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T, 6223.396,402,427forged, 1053 steel 7115.396,402,427forged, nitrided, cross-drilled, 5140 steel3804816.396,402,427cast3856223.396forged3863114.4023863144.396,4023874874.396,4023879621.427forged3882841.396forged, cross drilled, nitrided3882842.427forged, cross drilled, nitrided3882847.3882848.3882849.427forged3887114.396forged, nitrided, 5140 steel3904815.396,402cast, nodular iron3941180.3942411.3965746.semi finished, forged3993804.raw, 5140 steel, BBC ONE PIECE REAR MAIN OIL SEAL 3.76" STROKE used on '91-up Gen.V and Gen. VI 366T, 427T, 10114186427Tforged, 1053 steel10114187366Tcast10114189427Tcast, TWO PIECE REAR MAIN OIL SEALS 4.00" STROKE used on '70-90 Mark IV 454 or Mark IV 502, 3520.454forged, cross-drilled, 1053 steel3521.454, 502forged, cross-drilled, 5140 steel3524.454forged7416.454, 502forged, cross-drilled, 1053 steel7463.454forged336782..454cast353039..454cast353638..454359730..4543962523.454forged3963523.4543963524.454forged3967416.454forged3967463.454forged3975945.4543963521.454forged, cross drilled, 5140 steel3965753.semi finished, forged, 5140 steel3975495.4543993878.454forged10051169454forged raw casting, ONE PIECE REAR MAIN OIL SEAL 4.00" STROKE used on '91-up Gen.V and VI 454 or 502, 10114188454cast14097044454,502..forged, 1053 steel, 3732692348forged3.25" stroke3733223348forged3.25" stroke3733226348forged3.25" stroke3741640348forged3.25" stroke3741642348forged3.25" stroke3788072409forged3.50" stroke3795589409forged3.50" stroke3824553348forged3.25" stroke3829027409forged3.50" stroke, 3837466409,427 "Z11"forged3.65" stroke3838416409forged3.50" stroke, CASTING#..SIZEYEARMAIN CAP BOLTS.NOTES, 140029..35080-842330817..40072-802355909..262..75.2355909..30576-792360851..26275-762Monza V-8361979..30577-792 or 4, some Canadian assembled heavy duty blocks have 4-bolt main caps, 366245..35078-794Bowtie366286.4Bowtie, siamesed, straight nodular iron main caps, 2-piece seal, 4.00-4.150" bores, 2.45" main journals.
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