These numbers are from the front pad. 21B650536 K04 17 CTL. This block is a 2 bolt main and has the 3970010 cast in the back of the block then up above that is K 9 cast into the block. I looked up the head casting numbers 3998920 and it said they are 72-73 350. The intake valves are big on these heads.Manufacturer Part Number. 3970010. Vintage Part. Yes. Block Type. V. Number of Cylinders. 8. Number of Valves. 16. Engine Size. 350. Fuel Type. Gasoline. Brand. Chevrolet. Items Included. ... The engine block was not as was advertised. The block was not bored and had to be redone at a local machine shop. The engine has not been reassembled or ...Chevy Small Block Engine Casting Codes. First Generation Pictures; ... The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. ... 3970010 : 1969-69 : 350 : 255-350In today’s digital age, online advertisements have become an integral part of our browsing experience. However, with the increasing number of ads bombarding our screens, many users...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...I'm a bit confused. I always was only 1 thickness seal for the rear of the block. The year of motor is a bit of a mystery. It is a 350 4-bolt main, 2 pc. rear main seal motor, block casting number 3970010. Based on the stampings on the pad at the front of the block it is either a 1979 or a 1970, but I have not been able to distinguish which.I'm a bit confused. I always was only 1 thickness seal for the rear of the block. The year of motor is a bit of a mystery. It is a 350 4-bolt main, 2 pc. rear main seal motor, block casting number 3970010. Based on the stampings on the pad at the front of the block it is either a 1979 or a 1970, but I have not been able to distinguish which.Block Casting Number: 3970010. which from what I can tell means: 1969-1979 350 185-370hp 2 or 4 car,truck,vette. Engine Suffix code: CMJ. 1974 350 T400 police - full size car. This is where I get confused.. I'm fairly sure the engine isn't out of a police car, it's also from 1976 not 1974. From my research online it seems like CMJ is a very ...Discontinued NOS GM Sheetmetal; Online Store; ... Year Date Casting Size 2/4 Bolt BB=Bare Block Notes/Pad Number. ... 69 F-4-9 3970010 4 BB CE9B23598If you know all the ins and outs, then only this chart will help you identify everything you need to know. So here it is! Casting Number. Year. Cubic-inch displacement. HP/RPO/Remark. 340220. 1972-76. 427.All these are identified here. Quickly, A = Chevelle, F = Camaro, X = Nova. If you're looking at the engine code - this is already known. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette. Decoding small ...Small Block V8. Date. 1970-1973. Notes. 307, 2 bolt. Added to DB. December 20, 2010 (4902 days ago) Loaded in 1 ms. There are 2,506 casting numbers in the database.Gm casting number 3970010 but what is the A81 on the passenger side? A81 should be January 8, '71,'81,'91. ... 2 bolt engine block number 3970010 350? This does not appear to be a question.All these are identified here. Quickly, A = Chevelle, F = Camaro, X = Nova. If you're looking at the engine code - this is already known. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette. Decoding small ...Engine Families. This article covers a number of Ford V8 engine families. They are: Y-Block small-block: Produced in the US from 1954 until 1964, the Y-Block was the small block replacement for the Flathead V8 and is where this article starts. Common factory displacements ranged from 239 cubic inches to 312 cubic inches.The block casting number you gave doesn't exist, but it is fairly easy to figure out what you meant...."397010" is a digit short, the actual number is probably "3970010" which is a 4.00" bore block made from 1968-1979. The date code "B125" come out as "B" = February, "12" = day, "5" = last digit of year, which for that block casting would have ...3970010 SBC Casting Number Question. Discussion in 'The Hokey Ass Message Board' started by geemann51, Mar 3, 2009. Joined: Dec 16, 2001 Posts: 2,120. Profile Page ... thats the same number on the block im using, its a 4-bolt main, mine is a 350, great block, im running the bigger camel humps on it, its in its second hot rod, i …All these are identified here. Quickly, A = Chevelle, F = Camaro, X = Nova. If you're looking at the engine code - this is already known. If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B".... basically this means "it's used in everything", whereas if it simply states "Y"... this means Corvette. Decoding small ...3970010 block 3998991 heads. Need some insight from you SBC motor guys. I have this SBC sitting in the shop decided to rebuild it. I tore it down today. It is a 3970010 4 bolt main 350. Dished pistons with the valve relieves. Cam had one rounded off lobe and the lifter that ran on that lobe was concaved.The 3970010 casting numbers were used for 302/327/ and 350 blocks. With out looking up the suffix code your just guessing at it.Of course you could pull it down and have it mic`d. Look up the number again at moretec or nastyz28 site and check it out. Please let us all know what you find. Feel free to e-mail me and i will help if i can. Slider ...Are you tired of receiving calls from blocked or unknown numbers? Do you want to take back control of your phone and stop missing important calls? If so, you’ve come to the right p...3970010 block (had canister type filter) suffix code reads as CNV 3875954 Intake manifold 4bbl Rochester Q ... In my book "Catalog of Chevy V8 engine casting numbers 1955 to 1993" the head part # 3795896 was used on 327 62-64 Corvette 250 HP, 62-65 passenger car,62-67 truck, 283 63-67 truck,63-67 passenger car.This book was compiled by Cars and ...Re: need help chevy small block. If that is a Pontiac engine then the con vin should read 29N600758 instead of 79N600758. First digits = GM division. 1 - Chev. 2 - Ponitac. 3 - Buick. 4 - Olds. 5 - GMC. C8C - 1979 350-170hp LM1 F-body, my parts book says Camaro.Gm casting number 3970010, 350 4 bolt mail block. Need car detail. I have a 350 4 bolt main block with casting number(###) ###-#### Can you tell me the year and the vehicle it originally came out of? ... It is a 4bolt main and the block casting number (3970010) says it is a 350ci.Same 441 casting number. Servedio Cylinder Head Development. 631-816-4911. 9:00am - 9:00pm EST. mag2555. Guru. Posts: 4625. Joined: Sun Sep 18, 2011 3:31 pm. Location: Heading for a bang up with Andromeda as we all are.Oct 22, 2022 · casting number 3970010 is a 350 block from 1969 - 1979 but in 1969 302 and 327 have the same casting # and im not to sure about the other # What year is a 350 Chevy engine with casting number ...I have a 69 GM block whose casting number is 3970010. The date code is L89 which matches with that cast being made late in the 69 production year. It also has the 1178 steel Z/28 crank in it. My problem is this - The engine pad ONLY displays this: C15408UM. misswriter415 Discussion starter. 1 post · Joined 2008. #1 · May 1, 2008. I have a chevy 350 engine with Casting No. 3970010. I was told to get the numbers from the flat panel on the "passenger" side and I did. They are TYF705125 and V1015TMM. I have tried to look these numbers up and I can not find anything.Chevy small block engine chevrolet casting number 3970010 plus gearbox. 700r4 casting gearbox chevy chevrolet block engine plus number$199 gm 3970010 chevy engine block tyz corvette, camero or conv. cab Offerup locally simplestChevy engine sure chevrolet has tell diagram also further feel questions please reply if. Offerup simplest ...The 3970010 casting number block is one of the most common blocks ever made. It was produced from 1969 all through the 70s. Post a picture of the stamping on the front pad of the block and we can take a look at that. Need all of the casting date, which should be on the bellhousing flange, same general area as casting number.First, small block chevy block castings changed certain features over the years, and early model 3970010 blocks had a longer pad in the numbers-stamping area in front of the passenger cylinder head. The short, almost square pad you show in your photos is from mid-to late 1970's.Socrates is a Web-based program for General Motors’ employees. Employees use the program to stay informed about changes and updates within the company. Employees must register to u...A casting date indicates it could be a 1975 motor. I appreciate any help you can give me. Block 3970010 used on 350 CI corvette from 1970 thru 1979, also used on camaros. CMB engine suffix is from 1972 and 1975 camaro 350 CI engines. Looks like you have a 1975 camaro 350 CI block in the car manufactured in the Flint engine plant on April 7.Re: how much can a 3970010 block handle, it has the 010 high nickel casting ive personally run dyno proven 976 hp on a factory 2 bolt block with aftermarket caps and a half fill .biggest problem was keeping head gaskets on, because everything moved so much at those power levels. also had some main cap walk .had to be very careful with tune up not to detonate it .B. BogiesAnnex1. 17591 posts · Joined 2007. #7 · Jan 25, 2013. Your title lists the casting number as 3970010, if this is indeed an 010 casting it is the highly desireable heavy duty 4 inch bore block that was used for some 302's and 327's and a ton of 350's. It was used as a basis for high performance passenger car engines as well as …This block number has been used in many different versions of this aluminum 18 deg and 15 deg Bowtie race head. Different chamber volumes, port volumes, port locations, valve sizes, etc. were used. Check this castingcarefully to determine which features it may have. There are at least 6 different versions as of 11/99. 10147898: 95-96: 350 ...YEARS : CASTING : CID: LOW POWER: HIGH POWER : MAIN CAPS: COMMENTS: 1980-85 : 140029 : 350--2: car: 1973-80 : 330817 : 400--2: car, truck: 1975 : 355909 : 262-- 2 ...Chevy Small Block Engine Casting Codes. First Generation Pictures; ... The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. ... Passenger/Chevelle/Chevy II/Corvette/Camaro : 3970010 : ...Casting number on the rear of the block is 3970010, which supposed to be a 350 Blok and may well be. But the stamping on the pad is ML26800, which is supposed to be a Mexico 327 275 hp but I really don't know one from the other. ... The 3970010 casting was introduced by GM in 1969 and was used through 1975. It was produced in both 2 …These two numbers are the casting number and engine ID code. As the name infers, the casting number is cast into the block when the block itself is cast. This casting number will denote engine displacement, 2 or 4 bolt main caps, application year or year range, and often any specific application notes. These casting numbers are well known and ...Only show this user. #1 · Dec 10, 2014. Im trying to verify my numbers/facts before looking at a possible purchase. Are these the correct casting numbers for a 69 302. Heads: 3927186. Block: Before April of 69 3956618, After April 69 3970010. Crank: 1178. Intake: 3932472.The block casting number (drivers rear at back of block) is 3970044. No one seems to think this correct, but that is what it is. We do not know what the engine came out of. The number on the passenger side of engine on the pad are 14L192810 then 10219CMA. I believe it is a 350.Small Block Chevy engine identification. Code identification, Casting Number info. ... but it's a portion of the Small Block Chevy numbers information. The Engine Code page is where this topic is further detailed. ... 3970010: 327--2 : A: 1969-79: 3970010: 350: 185: 370: 2 or 4: car, truck, Vette: 1970-73: 3970014: 350: 200: 300: 2/4:| 1968, 1969, 1970, 1971, 1972, 1975, 1976, C3, casting, Corvette, engine, exhaust, left, manifold, number, numbers, rightSmall Block Chevy engine identification. Code identification, Casting Number info. ... but it's a portion of the Small Block Chevy numbers information. The Engine Code page is where this topic is further detailed. ... 3970010: 327--2 : A: 1969-79: 3970010: 350: 185: 370: 2 or 4: car, truck, Vette: 1970-73: 3970014: 350: 200: 300: 2/4:To block your phone number while texting, use email to send your text or use a number-changing app on a smartphone. If you use email, make sure the account you send the text from i...All 1955 and most 1956 Chevy V-8 engines used an engine plant stamp format like the following: 0I04563F56FG which breaks down to: 0I04563 = the sequence number of the engine F = the engine plant (Flint, Michigan) 56 = model year of engine production G = engine suffix code. Late in the 1956 model year, Chevrolet changed the format of the engine ...Apr 11, 2008 · For this block, it would be the '69 only. If "original" heads '69 302 heads 3947041 but, also used on the '69 350. 3970010 was a common block used from '69 to '80 on the 350. Your best bet, quickest way to find out, research the block date code and engine id# on block, if not decked. I have two of these blocks 3970010 4bm myself.So; my 71 C10 had the original 307 swapped out by the previous owner. He disclosed that it was a freshened up 305 believed to be from an '82 Camaro. However; it has the 3970010 casting number on the rear of the block. Engine suffix code stamped on the pad behind the alternator says C2R, which comes up as an '82 4bbl 305 with a whopping 155hp.This 69 350 block has casting number 3970010 with an E (May) 2 1969 casting date. All cylinders are standard bore. The block was originally installed in a big 1969 Chevrolet truck. The suffix code stamped on the deck pad is WM. No V.I.N. stamping anywhere on the block.Have you ever bought an engine from someone and wondered if it was what they said it was? I'll show you where to find the casting numbers to look it up for y...I have a 1970 Corvette with a 350(?) block 3970010. The Date casting number is all but gone - I can see an "8". The stamp number pad reads V0705ABT. Very clear- no VIN or other numbers. What is suffix code ABT? I know it's not Chevy, but I hope it didn't come out of an Iranian tractor or something totally weird. It actually runs pretty strong.A typical casting number for a Chevrolet small block V8 engine is 3970010. This designation shows a particular kind of engine block that was mostly used in various automobiles. The Chevy engine blocks' casting number provides a lot of details about the engine block, such as: Displacement. 2 or 4 bolt main.Chevy Small Block Engine Casting Codes. First Generation Pictures; ... The Engine Block Casting code is one of the best ways to identify a Chevy engine block. This Casting number is usually found at the rear of the block on the left or drivers side on top of the bellhousing flange. ... 3970010 : 1969-69 : 350 : 255-350Body, Chassis and Mechanical. Drivetrain & Performance. The 3970010 BlockMy Questions Are I Have This Block The 3970010 And The Heads Are 3973487 The Block Is A 2 Bolt Main And I Dont Know If Its Worth Rebuilding? And Dont Know If Its A 327 Or 350? ... With The Casting Identification Numbers They List 327 And 350 With The Same Number How Do I Know Witch Is Witch? And The Heads Are The …3970010 block question. I purchased a 67 with an unknown 350 with the 010 block and the last three letters on the block pad are TMM--I have another 010 block with the same pad letters TMM that I know is a 4 bolt main it also has the casting K9 next to the block numbers on the rear--I was told this is a better block casting because of the …Nov 11, 2005. 8,399. living the dream in my own world... rwflather said: I also have a 3970010 block. It has the 010 and 020 on the back and front, so I also know it is a high tin/high nickel block. The casting date is I 3 9, so I assume it is late 69/early 70 block, and is a 4 blt main block.3970010 = 68-80 350 2 or 4 bolt main 4 inch bore J67= October 6 1967, or 1977. This block was not cast in 67, so that leaves 77. If it says hecho in mexico on the block, I think it was above the pad location, it is a target 350 or crate engine built …Manufacturer Part Number. 3970010. eBay Product ID (ePID) 655203918. Product Key Features. Vintage Part. Yes. Material. Cast Iron. OE/OEM Part Number. 3970010. Show More. ... item 5 SBC 350 V8 ENGINE BLOCK 3970010 4 BOLT MAIN SMALL BLOCK CHEVY 1973 Chevelle SBC 350 V8 ENGINE BLOCK 3970010 4 BOLT MAIN SMALL BLOCK CHEVY 1973 Chevelle. $749.99.Oct 22, 2022 · casting number 3970010 is a 350 block from 1969 - 1979 but in 1969 302 and 327 have the same casting # and im not to sure about the other # What year is a 350 Chevy engine with casting number ...Thanks - I have a 69 with a block cast as GM 41 3970010 I believe its a 1978 block (J 78) and it has the smaller front pad, which is blank. The dipstick is on the drivers side. No made in Mexico script either in the back. ... The '41' on your block is called "pattern serial number 41". The foundry poured 2 castings per cask (in this case, it ...i was under the impression that this particular block casting 3970010 was some how stonger than other blocks high nickel or not. most of the casting number index sites show this number as "Heavy duty truck block hi perf ECT" they both came from circle track cars there must be some reason they were prefered not just for the nickel and tin content. am i incorrect.help with 3970010 block. ... Numbers cast into the shaft between lobes are L15, then GM21, then 2182 The lifters have a snapring in the top, so that would mean they are hydraulic, right? ... Cam is a GM LT-1 (solid lifters), cast in December, 1975 (service part). Block was made at McKinnon Industries (Canada), cast November '73. :thumbsup:3970010 is a rugged block used mostly for 350's for mamy years from trucks to the original 1970s LT1's. As a 350 or 302 many, but not all, have 4 bolt center mains. It also was used for large journal 302s and 327's. I'm not going to comment to the meaning of 010 and 020 on the block as relating to the presence of nickel or not in the casting.I have a 4 bolt main,apparently 350 with the # XXXXX:vc011tbc,and,3970010.Heads have #3878487. Iwas told this is a 1969-1979, out of a car truck or vette.Any help would be greatly appreciated.I'm building a 383 stroker ,and need to know if it's a good block,and heads to use. Thanxxxx.You need to look at the full 7 digit casting number on the rear of the driver side of the block to find the 3970010 number. Somewhere in that same area is the date code. The casting number, per Slim's post. is not unique to an LT-1 - though an LT-1 is likely to have used that block. ... Chevy Tri Five Forum. 2.5M posts 63.4K members …One forum quoted that GM moved date codes to the side of the block in the 70's. This is passenger side between the core plugs. Block code (in the usual place) confirmed as 3970010 "M" code next to this. ... All the 70+ blocks I've had have the date code on the block ledge opposite the casting number, early 396's have 'em where your …A typical casting number for a Chevrolet small block V8 engine is 3970010. This designation shows a particular kind of engine block that was mostly used in various automobiles. The Chevy engine blocks’ casting number provides a lot of details about the engine block, such as: Displacement. 2 or 4 bolt main.I've got a 350 SBC that I'm rebuilding but I'm not sure of the year of the block and I need to order my gasket set; I thought I had casting codes in one of my books, but I was wrong. Hoping for some help. . .. . .here's the casting code: GM 3970010 I don't know the engine ID number (I will find out tomorrow when I pull the heads off though).Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. ... 3970010. 69-79. 302/350 ...May 11, 2014 · 3970010 is a 4.0" bore block, used to make 350's mostly (1968-1979), two years (1968-69) of large journal 327's and one year(1969) of 302's. The "high nickel block" thing is an car magazine/internet myth that just won't die, one of our members here and on other forums who worked for the GM casting plant in Flint, Michigan back in those days explained it all, the "010" and "020" cast numbers ...Sep 14, 2012 · Chevy Small Block - Engine Block Casting Numbers Notes (for below): "High Power" is the maximum rate HP this block was used for, "Low Power" is the lowest rated horsepower RPO engine the block was used in. "Main Caps" is the number of bolts holding the cap. A "two-bolt" main, or a four-bolt main.1970 - 1972 LT1 Replacement Engine (4bolt 3970010 Block, Hump Heads, TRW Domes) CUSTOM ENGINE SUPPLY. (1481) 100% positive. Seller's other items. Contact seller. US $8,995.00. or Best Offer. No Interest if paid in full in 6 mo on $99+ with PayPal Credit*.Oct 25, 2010 · This block is clean and stripped on an engine stand. Rotate it and can find nothing except whats between the frost plugs on the right side. Where the 3970010 is cast it just has a GM id above it and to the right of the number it has K 11 but thats it. Seems to be a bit of an oddball.It is a 3970010 four bolt block which sounds like it was produced from 69-79. It appears to be a higher nickel block as it has the 010 casted behind the timing chain cover and the back of the block above the crankshaft flywheel flange. ... Where the 3970010 is cast it just has a GM id above it and to the right of the number it has K 11 but ...automatic trans. H. -. -. full size/Camaro. Last updated: 12/1/2014. MadMike Maciolek. (tm) Decoding small block Chevy engine suffix codes and stamped numbers: CE - CMJ.. B. BogiesAnnex1. 17591 posts · Joined 2007. #7 · JaMar 11, 2009 · i have a small block 3970010. l Chevy recycled the same numbers every ten years. ... #5 · May 13, 2018. thanks big dave, i recently came across a 3970010 350 sbc shortblock 4-bolt std bore and the block casting is D202 and crank is D192. ... After playing with a small block Chevy for over a half century I can look at the block on an engine stand and just about tell you when ... This How to video will show you how to find or locate the casting num Chevy Chevrolet small block V8 engine casting numbers - WaywardGarage.com - Hot Rods - Musclecars ... Chevrolet Small V-8 Cylinder Block Casting Numbers 1955-1985 These listings are always a work-in-progress. If you have any documented info that can be added to these pages, ... 3970010: 350: 69: Corvette: 4-bolt main, late 69: 3970010: 302: 69 ...This is the cylinder block in the 57 wagon in my profile photo. I took the pictures during final assembly of the engine. It is important to note that this block is NOT a 4 bolt block. It is a 2 bolt original 327 block, although I understand that 3970010 was also used for 302's and 350's which also have a 4" bore. Driver. Then I looked in the usual places for numbers on my Chevy s...
Continue Reading