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. 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. The Chevy part number for that cam is 3896929. 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 1970, it was the cam for the 307/200hp; 350/250hp, 300hp; and 400/265hp. . And there is a CR inscribed as well off the lower left Also there is a Blue dot just under the distributor drive gear. Casting numbers used on factory 366ci tall deck engines (some used on multiple engines): *ending 328: 1980 through 1991. They dont own the name flat, but the lobes of roller camshafts are perfectly flat. Quick View. Learn how your comment data is processed. 139536 93B2B, I have a solid roller cam has cc 950 k5462 r6 292-5 296-6 stamped on front help with specs, I am just trying to decode the cam out of my 400m. 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. The greater number of degrees means there is less overlap between the intake and exhaust lobes. Chevy Cam Part Number Location Chevrolet Big Block Camshaft Types Chevrolet installed Three different types of Camshafts on the Big Block Engines. Small Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. How to Turn off Daytime Running Lights (Explained), How to Turn Off Headlights While Car is Running. Do not enter the -2 on dual cams part numbers or the (I) that indicates intake or (E) for exhaust. 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. 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. exhaust valves. 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. That gives us our first clue where to look for the rest of the numbers. It's a stock cam. With over 35 years of experience in automotive machining, you will not find a more trustworthy and reliable source of parts. Vortec truck, Gen.I crate motors and ZZ4, roller cam, one piece rear seal: 12550592 : 97-up : 350 : crossbolted block, Gen.III, LS1, aluminum: 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. Small Block Chevy Factory Camshafts . 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. How to Start a Car with a Blown Head Gasket (Explained). motor could have casting number 10112391 or 10112391S that is the service replacement. In 1969, it was the cam for the 307/200hp; 327/210hp, 235hp; and 350/250hp, 255hp, 300hp. We found it under the heading of Xtreme RPM for LS1 lobes, Hi Lift. 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). Old school Comp 9000 Mallory Distributor and coil. There are 3 different ways to select your camshaft tightly. 1014789895-98350.Gen.I crate motor1015955087-953501015955187-953051015955287-953501015955387-953051017438991-94350.LT5, ZR1, DOHC, 32-valve, drvs. I have a new cam was told it was a comp cam # 1136 230780 any ideas on cam specks. If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. At one time they supplied 85% of the blanks in the world. 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. When referring to LSAs, the larger the number, the more degrees of separation between the intake and exhaust lobes. 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. Only thing is the idle mixture screws have little effect (oh no timing pointer either on order) so cant really tell timing. This is the COMPCams equivalent of the Rosetta stone for cam lobes. CWC is the foundry that cast the cam blank. Stamped on end is Z099, also has three pink dots above that stamping. (Yes or No). i have some stamps on the cam that i can see EP236 and CWC can these be used to idetify the cam. How does this compare to the 69 dz 30/30/ cam? COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM. The 8.1L FO is 1-8-7-2-6-5-4-3 where a 454/7.4L is 1-8-4-3-6-5-7-2 as seen in Figure 1. Speed isnt a problem with a dual camshaft and it increases the engines power. 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 . 330864: 1968 through 1991 oval port, open chamber, 2.06 in. In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. The duration at lash point in degrees (intake/exhaust) is 328/324; duration at .050" tappet lift (intake/exhaust) is 220/220; and . Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35. Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. Used on RPO: L86 (1980-1991). This is an involved process, requiring the removal of the engine's front end. . CAM 6964 1969 CAMSHAFT ID. 210/218 at 0.551/0.556 at 113 degrees . My buddy says its a mild cam thats bigger than a stock LS6 version, but he didnt have any more information. It has a taper inside the lobe which ensures the lifter can spin. No smoke, but I have not checked compression yet. Rear cam bearing journal is etched/engraved Fessler Killer Cams #38 Any info is appreciated. The prefix consists of five digits and explains the date and the location of the Chevy's manufacture. The 8th digit of the VIN. This is a COMP Cams timing card. You need the measurement of the diameter to compare with the database or any online store IDs. GM is recalling seven. Roller: 202/206 .403"/.415" Their outer look tells the difference. I hope it helps you identify the Chevrolet engine parts you are working on. You need the best camshaft that works well with your vehicle. however, depending on how you want to look at it. Drake studied journalism at Southern Connecticut State University. How Long to Drive After Reset Computer to Pass Emission Test? A DOHC is known as a dual overhead cam. Its got a great loping idle (big cam?? eBay Product ID (ePID) 2320190292. Does Your License and Registration Address Have to Match? diameter 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. GEN III vs GEN IV. As each engine model comes with a specific camshaft, proper identification is key to finding the right one. The 3709/3711 numbers are references to lobe designs. Trying to find the specs on this camshaft. A Guide To Ford V8 Engine Block Casting Numbers, 1952-1996. If you don't have the VIN, you can still identify the engine by visual inspection if you know what to look for. Chevrolet LS7 Camshaft. I have a 1969 z28 I bought a few years back from a friend who was orig owner. In this case: 108 + 116 = 224 degrees / 2 = 112 degrees. How Long Does it Take to Replace a Catalytic Converter? In 1971, it was the cam for the 307/200hp; 350/245hp, 270hp; and 400/255hp. Chevy V8 "W" Motor 348-409 Casting Numbers. (You must log in or sign up to reply here. Information is premium and can save you from errors and spending excessively. 4270 H11 then letters CC vertically, then CB6554 can you tell me the specs on this cam? 4485B 4391B HR112+4 R (with a line under the R ) then CC and at the bottom G1979-14. One thing I"m trying to figure out is if the orig cam is still in the car. A native of New Haven, Conn., Floyd Drake III began writing in 1984. Now turn the engine clockwise and stop at 0.050 on the opening side of max lift and record the degree wheel reading. A SOHC allows at least 2 to 3 valves per cylinder configuration, with more manufacturer prowess. The next two numbers are the valve lift of . In 1975, it was the cam for the 350/145hp, 155hp, 165hp; and 400/175hp. Carb number is stamped in this location as well as on an identification tag held on with one of the air . E I have no idea whats on the inside. CAM 6930 1967 CAMSHAFT ID. 1954-1955 235 Engine 3835913; 1956-1962 235 Engine 3836848; 1956-1962 261 Engine 3836850 This is the number of crankshaft degrees of separation between the intake and exhaust lobe center lines. In 1973, it was the cam for the 307/115hp; 350/145hp, 175hp, 190hp; and 400/150hp. CAST3736098. PG,63 4WD 1st series. The HI-PO color coded stripes on the camshaft end are green, orange and red. Only show this user. It is an eight or nine-digit number. The grind number is the ever noted number, far and more recognized than the model number. 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 ? What Happens When the Turbo Goes on a Diesel? Any time you are making this kind of important decision about your engine, it's . The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. SBC Block Casting Numbers. were used. 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. Chevy LSX454 Camshaft. I dont have any numbers. Do You Get a Ticket in the Mail for Passing a School Bus? Any info helps, or where I can find. Required fields are marked *. (Yes or No). (Yes or No), Will Hub Centric Rings Stop Vibration? First Generation Camaro Info and Tech - 1967-1969. Answer (1 of 4): Most common specs for an engine would be for example. 366299.4Bowtie, Aluminum, nodular iron splayed caps, wet sump, 4.00" bore389257..302..67.2393288..28365-672460703..350..78.4460776..30578-792460777..30578-792460778..30578-792 or 4, some Canadian assembled heavy duty truck blocks have 4-bolt main caps471511..26779-8223556519.28358-6123703524.265..55.2No oil filter3720991.26556-5723731548.265572No side motor mounts3731548.283572No side motor mounts3737739.28358-6423756519.28358-6223782870.32762-6723789817.28362-6423789817.32762-6723789935.28361-6423790721.28362-642Chevy II recessed oil filter boss3790721.32765-662Chevy II recessed oil filter boss3791362.32762-672Chevy II recessed oil filter boss3792563.327..65.23792582.28364-6523794226.28358-6323794460.32762-6423830944.327..63.23834810.28364-6623834812.28362-6323837739.28358-6223849852.28357-6623849935.28365-6723858174.32764-6723858180.32764-6723858618.35068-7623862194.28365-672Chevy II recessed oil filter boss3862812.28362-6423892657.302..67.2Z-28 Camaro3892657.327..67.23892657.350..67.2Camaro3896944.28366-6723896948.28366-6723903352.327..67.23914636.307..68.23914638.307..68.23914653.30768-7323914660.327..68.23914678.302..68.2Z-28 Camaro3914678.327..68.23914678.350..68.23931174.307..68.2Truck3932371.30769-7323932373.30768-7323932386.302..69.4Z-28 Camaro3932386.327..69.23932386.350..69.2 or 43932388.327..69.23932388.350..69.2 or 43933180.32768-6923951509.40070-7143951509.40074-8023951511.40070-734Some replacement blocks had 2-bolt main caps3956618.302..69.4Z-28 Camaro3956618.32768-6923956618.350..69.2 or 43956632.307..69.23959512.32762-672Was also used for some "CE" replacement blocks3959532.283642Used for some "CE" replacement blocks3959538.327..2Chevy II recessed oil filter boss, Used for some Chevy II "CE" replacement blocks3970010.302..69.4Z-28 Camaro3970010.327..69.2Trucks and industrial3970010.35069-802 or 43970014.35070-762 or 43970020.30769-7323970024.30769-7324715111.305..80.26259425.35069-762, 95509..400.762 bolt have only seen one10036033350..4Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico"10046164305..86.210049804..4Aluminum, Pontiac Super Duty version of Gen.I SBC, 4.00" bore, 350 mains, 2-piece rear seal, splayed caps, GTP race block10051182..2 or 4Bowtie, 3.75"-4.30" bores, 1 or 2-piece rear seal10051184..4Bowtie, 4.00"-4.155" bores, 1 or 2-piece rear seal1005472735086-up2 or 4one piece rear seal, some "Made in Canada"10066036350..2 or 4Target Master/Goodwrench crate motor, 2-piece rear, seal, "Hecho en Mexico"10066038350..92.4Goodwrench crate motor, 2-piece rear seal, "Hecho en Mexico"10090511350..90.2LT-5, ZR1 Vette, 375hp1012532735092-up2 or 4Gen.II LT-1, reverse flow cooling1012532735096-up2 or 4Gen.II LT-4, reverse flow cooling10134398..4Bowtie, Aluminum, 4.125" bore, 2.65" main journals10134996..4Bowtie, Aluminum, 4.125" bore 2.65" main journals1015355835091-924LT-5, ZR1 Vette, 375hp1016858826594-962L99, Gen.II, 4.3 Liter V-8, Caprice, reverse flow cooling1019900135093-954LT-5, ZR1 Vette, 405hp1024387830596-982Vortec truck, roller cam, one-piece rear seal1024388035095-002 or 4Vortec truck, Gen.I crate motors and "ZZ4", roller cam, one piece rear seal1255059235097-upcrossbolted block, Gen.III, "LS1", aluminum1255135899-upGen.III, 4.8L or 5.3L, cast iron, truck1255136436498-04crossbolted cast iron Gen. III, 6.0L, truck1255937835099-upcrossbolted block, Gen.III, "LS1", aluminum1255984635098-upcrossbolted block, Gen.III, "LS1", aluminum1256062135098-upcrossbolted block, Gen.III, "LS1", aluminum1256062635099-upcrossbolted block, Gen.III, "LS1", aluminum1256062935099crossbolted block, Gen.III, "LS1", aluminum1256116835001-upcrossbolted block, Gen.III, "LS1", aluminum1256217435098-upcrossbolted block, Gen.III, "LS1", aluminum1256895236405-upcrossbolted block, Gen.III, 6.0L, aluminum, LS21256691032504-upcrossbolted block, Gen.III, 5.3L, aluminum, SSR truck1257104832504-upcrossbolted block, Gen.III, 5.3L1257358136498-04crossbolted cast iron, Gen.III, 6.0L, truck1257718436498-04crossbolted cast iron, Gen.III, 6.0L, truck1257739602-upGen.III, 4.8L or 5.3L, cast iron, truck1401020130580-8521401020230580-8521401020330580-8521401020735080-852 or 41401020935080-852 or 41401028026779-822140110643508341401114835087-89.Roller cam, one-piece rear seal1401637626779-8221401637935077-792 or 41401638130580-8421401638230579-8421401638330580-852Truck1407928735086-90.Truck1408852635087-89.Roller cam, one-piece rear seal1408854835086-882 or 41408855130586-872one-piece rear main seal1409362730587-942Roller or flat tappet cam, one-piece rear seal1409363835087-952 or 4Roller or flat tappet cam, one-piece rear seal1409476630586-up2One-piece rear seal1410114730585-up21410114835086-904One-piece rear seal1410205830587-912Roller cam, one-piece rear seal22551656..4Chevy/Olds Rocket block, 4.00"-4.190" bores, 2.45" main journal sizes, splayed caps, dry sump, 2-piece rear seal, 9.025" deck22551660..4Chevy/Olds Rocket block, 4.00"-4.190" bores, 400 mains journal sizes, splayed steel caps, wet sump, raised cam 2-piece rear seal, 9.300" deck. The 4 digit ID on the camshaft core is 1529, which if correct I believe is for a 327 engine. $510.45. Could someone help me identify these cam numbers ? ). For instance, the number for a Toyota 3SGE would be CS 3SGE. It's a 10168588 casting that had the numbers "4.3" cast on the side, too. Check this castingcarefully to determine which features it may have. Small Block Casting numbers Big Block Crankshaft Cylinder Head ID Use these casting numbers to identify the heads you have. Knowing the measurement of a lobe separation angle is another special way of telling the difference between camshafts. 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. 1 BTC 42 ABC 223 30 BTC 80 ABC 290 .298 .447 114 1.5 HYD EXH. They make castings for CMC (Camshaft Machine Corp.) and EPC (Engine Power Components) and others. Dec 31, 2009. The end of the cam is stamped 3709/3711 HR 114 followed by CC and 7661-11. 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. It doesn't indicate a different cam or an earlier or later version. Thank you ,This has been very helpful. 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. Contact. Camshafts come in a wide array of variations, and Chevrolet has a range of camshafts for different applications, engine sizes and performance specs. News Chevrolet Performance Releases The Impressive L8T As A Crate Engine . I only put the numbers here that I can prove, so this is a short list. 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. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! If it is an original GM part, these numbers will be there. If we didnt already know this was an LS cam, the first thing we would want to do is determine the engine family. Hey Keith, we did some quick sleuthing and your cam MAY be for a BBC Marine (boat) motor application thats been discontinued. 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. COMPCams uses two-number designations for all its engine families. The model prefix is the first part of the camshaft number, and it describes the vehicle that the camshaft is meant for. In the catalog, you will see the cams listed by configuration starting with flat tappet hydraulics and then hydraulic rollerswhich is what we want. The specs on that cam are: (read int lift, ehx lift, int duration, exh duration, rocker ratio). The next information engraved on the cam was HR 114. Any advice? On this cam card, you will see the LSA is 112 degrees. We continued down the list until we found the 3709 number, which because it is listed first on the camshaft, is the intake lobe. 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. How to Get a California Drivers License with an Out of State License, Can You Register a Car Online in Florida? cam 5054 i am still searching for "Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of . Which cam are you refering to that helped your son achieve 11.80? JavaScript is disabled. There following are ways you can tell a difference: As the name implies, these sets of numbers reveal the model of the camshaft. with Jeff Smith: How to Decode a COMP Cams http://www.onallcylinders.com/Jeff Smith: First of all, the CC refers to COMP Cams. A camshaft is a rotating object in a vehicle with pointed cams in which its rotations produce reciprocal motion. JAMSI is a trusted source of automotive engine parts. The pushrods cam stays above the cylinder, which is always above the combustion chamber. For instance, if you have numbers like 266H04, the last two digits are the numbers used to show the measurement of the lobes. All of these applications had the same specs as the initial 1967 application. Car AC Compressor Not Turning On (Causes and Quick Fix). 0967 is the last four digits of the GM part number. The 3709 lobe is listed as 265 degrees of advertised duration with 212 degrees at 0.050 and .328-inch lobe lift. There are many numbers and terms used to describe the design of the camshaft and it's important to know how these numbers will affect the performance of your engine. Identifiers: Letter R, CWC, EP1, C4 and E8. Your email address will not be published. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It is typically located in the center of the cam between the lobes. The Fora platform includes forum software by XenForo. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Camshafts Melling offers a full line of OE replacement camshafts for cars, light duty, medium duty and heavy duty trucks. One of the primary differences between the GM GEN 3 and 4 ECMs are how they estimate airflow using VE Tables. 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 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.