C3 Tech/Performance - 1970 LT1 engine number - My 350 engine has an engine number starting with CEC. The block # is 3970010. I ordered this engine new over the parts counter from a Chevy dealer in 1972. I thought it was a 1970 LT1, but the CEC prefix doesn't match up with anything I can find in the books. What does...American-made Chevrolet is one of the best-selling brands in the United States. If you are in the market for a used Chevy, whether a sedan, truck, SUV or sports car, this article h...The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. The entire engine code contains the assembly plant, month and day along with the engine suffix code. The way I have the block sitting is the 4 bolt main caps are facing down. To the left side is the oil pump and …Mar 6, 2013 · Re: Help identifying engine. 3970010. « Reply #4 on: March 18, 2013, 11:27:25 AM ». The 3970010 block is probably the most common "350" block there is. As stated it can be any 4.00" bore motor of the 3 possible. More than likely its a 350 that someone has changed the timing cover on, or maybe a car engine. If it has a 6" harmonic balancer it ... The Chevy 6.0 liter small block engine is an eight-cylinder engine aligned in the V formation and is called the Vortec L96. As of 2015, it is used primarily in Chevy’s heavy-duty t...High Nickel GM #3970010 Engine Block "010 020" Marked Block decoding High Nickel! I estimate this motor makes around 420hp at 5500rpm and around 450ft lbs torque. ... 3972110, ss rs camaro motor engine, 302 DZ, 302 MO, CHEVY ENGINE, CHEVY MOTOR, 1969 1970 CAMARO Z/28, 1970 LT1 MOTOR, 350 360HP, 350 370HP, 302 …3970010 - This is a small block V8 engine that was produced from 1969 to 1980. It was used in a variety of GM trucks, including the Chevrolet Camaro, Corvette, …SBC 350 Bare Engine Block Casting # 3970010 4 Bolt Main Machined and Painted. stoversps (174) 100% positive; Seller's other items Seller's other items; Contact seller; US $1,250.00. No Interest if paid in full in 6 mo on $99+ with PayPal Credit * …The way I understand it, if the 010 and/or 020 are under the timing cover, it's a high-nickel, high-tin block, but if the 010 is somewhere else, it denotes the casting number. The entire casting number (3970010) will be behind the left-side head surface, so you can always look there to be sure.I just bought a chevy 350 as a builder. Complete long block for $100. Any way I got the motor out of a 1982 el camino. I don't think it was original, i.e. they only came with 305's that year, as far as I know. The casting number on the block is 3970010. From the stuff I read it could be a 1969 to 1979 350 2 or 4 bolt ( this one is a 2 bolt ).From this chart - I think you may be misreading the number - 3970010 is possibly the actual number: Which makes the engine pretty old 68-72 350 V8 - 4 bolt main. I included past this number so that you can see that the number you posted doesn't actually exist. And thus my conclusion that the 9 is most likely a 0.I have a 3970010 block in my 69 camaro that is stamped "CEB1362" on the pad behind the alternator. ... A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! ...Anyone know this block GM 41 3970010. I know its a 350, (I believe), has a drivers side dipstick and a "8" for its build year. I would think 1978 cause the small pad in the front of the engine is the smaller square shape not the longer more narrow older style pad for 1968. The pad is smooth so theres no engine codes. Its cast GM 41 by the 3970010.Loads of 2 bolt small blocks were raced all through the 60s. The dz 302's although rated at something like 290 hp actually ran over 400 hp. I beleive they were 2 bolt in 67 and 68. The ticket is in using the right parts (like a forged crank and rods) and a meticulously ballanced bottom end.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 ...Remove the plug by inserting a 1⁄4-inch diameter steel rod (found in hardware stores) into the oil-pressure access at the rear of the block. A few taps with a hammer will drive the plug out. It’s a 1⁄2-inch type P5 plug available at any parts store. This plug must be in place for oil to flow to the oil filter.If you’re in the market for a used SUV, a Chevy Blazer is definitely worth considering. Known for its reliability, versatility, and stylish design, the Chevy Blazer has been a popu...Chevy Small Block Engine Casting Codes. First Generation Pictures; ... Passenger/Chevelle/Chevy II/Corvette/Camaro : 3970010 : 1970-80 : 350 : 145-350These 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 …1969 396 casting date C 14 9 for March 14, 1969 - note this casting date is on the rear of the engine block next to the bellhousing. 1970 396 casting date B 6 70 for February 6, 1970. Note 1970 has a 2-digit year code. 1970 454 casting date of C 10 70 for March 10, 1970.Loaded in 1 ms.. There are 2,506 casting numbers in the database.2,506 casting numbers in the database.The 3970010 Block. Jump to Latest Follow. 50K views 119 replies 22 participants last post by 302NOVA Jul 18, 2018. FST_FWD Discussion starter. 632 posts …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. Four bolt main blocks are …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 ...Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. ... It can be done on any 3970010 (or other) block. 99% of the time, the casting # won't indicate anything. …Same engine the stamp number passenger side front behind alternator on the block is T51509012 Any help would be appreciated . Reactions: crunchyg. TXK20 New Member. Joined Jan 3, 2015 Messages 10 Karma 1 Location Dallas, TX Car '82 Chevy K20 Jan 3, 2015 #2 Casting No. 3970010 = '69 327 from Camaro, '69 327 from trucks and …OEM SBC HP Rating 3970010. I have a high nickel 010 block casting number 3970010, that is at the machine shop right now. It's a 4 bolt block NOT splayed, with stock caps. I hear they are good for about 850 hp at the crank and the main webbing is critical after that. I am putting a callies compstar crank and rods in it with JE slugs.Details for 3970010; Manufacturer: Chevrolet: Category: Engine Blocks: Type: Small Block V8: Date: 1969: Notes: 302, 4 bolt, Camaro Z28, may be mistaken as 8970010: …3932388 Tonawanda cast and built, probably identical to the 3932386 block . Used as a 350/300 only. Casting dates from September 68 to December 68 3956618 Identical to 3832386 with minor casting changes. Generally used in low power 327 and 350 3970010 Completely new engine case design. used up to 1975. Casting started in late …re: 3970010. Can you post the id letters and numbers that you see on the engine block on the the small extension of the block surface just below and ahead of the head on the passenger side. I have some books that might reveal some info re: the year of the engine. BTW my own 383 stroker has a number that I cannot seem to find anywhere yet.I have the same casting 3970010. I think it is a 350, but it is in a 1978 Camaro LT that is supposed to have a 305. I tried looking up the number stamped on the pad by passenger side head under the alternator, but I can't find anything on it. The number appears to be V10191FJ. *Driver side exhaust manifold is 364747 GM.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.#2. Gary S. Administrator. Lifetime Gold Member. Apr 14, 1999. 25,167. Bismarck, North Dakota. They are basically the same. Chevy made both castings and …C3 General - Block casting GM 41 3970010 with a 78 date code. Whats GM 41 mean? 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. Did all the 010...350 Rebuilt Chevy Small Block Engine Block # 3970010 with Edlebrock Intake Manifold This engine is in good rebuilt condition. The intake manifold is made by Edlebrock. This item is listed as Pick Up Only, but if you are interested in it and are willing to pay for the cost of shipping, please send me a message with your zip code and I will find ...Location. Dallas, TX. Car. '82 Chevy K20. Jan 3, 2015. #2. Casting No. 3970010 = '69 327 from Camaro, '69 327 from trucks and industrial, or '69-'80 (vehicles unlisted). You'll need at least your assembly date (number stamped in front of pass side head, which is No. 4 on the location diagram on this site) to narrow it down, assuming that number ... The number itself can have 6, 7 or 8 numeral digits. They might look like this “361959” or “3970010” or “14015445”. The block casting numbers do not have any letters in them. There are sometimes other individual letters found on blocks like “GM” or “CFD” for the Central Foundry Division, but they are not part of the block ... Mar 21, 2019 ... ... I use that has always worked for me in identifying a 4 bolt main small block. small block Chevy, v8, 4 bolt main, sbc, hot rod, engine, diy.Hi guys, hoping someone can set me straight about the block I have. I have a bare block that has casting number 3970010, it is a 4 bolt main block with the main caps stamped 2842, it also has 010 buy the oil filter housing which means 10 percent more iron or nickel which should mean a better block.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.The number itself can have 6, 7 or 8 numeral digits. They might look like this “361959” or “3970010” or “14015445”. The block casting numbers do not have any letters in them. There are sometimes other individual letters found on blocks like “GM” or “CFD” for the Central Foundry Division, but they are not part of the block ...Updated: 9/19/2023. Wiki User. ∙ 13y ago. Best Answer. GM engine block # 3970010 was used as early as 1968 on some 327ci engines. From 1969-1979 it was a 350ci engine. It could be a 2 or 4 bolt ...1265 posts · Joined 2016. #4 · Apr 21, 2022. 350 truck motor – 4 bolt main VO217WK used in C10 to C35 trucks and industrial equipment came out of a MF combine. Built in Towanda, MI. Block 3956618 date B129 (Feb 12, 1969) Also used in 1969 302, 327, and 350. Heads 3927186 date: G318 (July 31, 1968) 64 cc, used on 69 302 SAVE FOR …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.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.OEM SBC HP Rating 3970010. I have a high nickel 010 block casting number 3970010, that is at the machine shop right now. It's a 4 bolt block NOT splayed, with stock caps. I hear they are good for about 850 hp at the crank and the main webbing is critical after that. I am putting a callies compstar crank and rods in it with JE slugs.The 3970010 block is probably the most common "350" block there is. As stated it can be any 4.00" bore motor of the 3 possible. More than likely its a 350 that someone has changed the timing cover on, or maybe a car engine. ... 77 Chevy K10 Custom Deluxe-Dad's first truck 69 Chevy C30 flatbed-Grandpa's farm truck 1950 …GM engine block # 3970010 was used as early as 1968 on some 327ci engines. From 1969-1979 it was a 350ci engine. It could be a 2 or 4 bolt block used in cars, trucks and even corvettes. ... 4 Date code; 5 3970010 casting number. Chevy block casting numbers can usually be found on the rear of the block adjacent to where the block and ...Casting number 3970010 is a very desireable block it is a 4 inch bore used for late 327s, Z28 302s, and heavy duty 350s used as performance, truck, and industrial engines. They all vary as to being 2 or 4 bolt mains.44 posts · Joined 2004. #1 · Feb 20, 2005. Hi everyone. I am going to purchase an engine with 3970010 as the casting numbers on it. The books indicate that this block could be a 302, 327, or 350. It is a four bolt main and my goal is to convert this block into a 383.Learn about small block chevy torque specs online at JEGS. . Read our SBC 350 torque specs and build the engine you want at JEGS today! ... 3970010 - 327 CID, 1969, 2 ...Apr 11, 2021 · Chevy 350 Details about GM 3970010 Small Block Chevy 350 Bare Block 4 Bolt 4.030 Bore I-20-6 Date. Where is the serial number on an engine block? The engine serial number is on a metal plate attached to the block, typically found on the left-hand side of the engine. Until you take the pan off, don't assume its a 4 bolt just because of the casting number... been burned by that issue myself. Got a 77 3/4 ton van... was original, and a 3970010. Got it home, cut the van apart around it, put it on the stand. Started to disassemble it for the rebuild and found it was a 2 bolt. So I forked out a lil extra and put ...Loaded in 1 ms.. There are 2,506 casting numbers in the database.2,506 casting numbers in the database.Apr 14, 1999. 25,167. Bismarck, North Dakota. They are basically the same. Chevy made both castings and used them pretty much interchangeably over the years. The 3970010 seems to have been made in much larger numbers than the 3970014. Jan 15, 2008. #3.J. javamxcars Discussion starter. 7 posts · Joined 2006. #1 · Nov 16, 2006. I speak with a lot of friends , and the opinon is the same , the question is: the chevy block 3970010 with number 010 .020 is for the nickel ,ok is it for 1% tin and 2% nickel or is 10 % tin and 20% nickel ? Like. Sort by Oldest first.1265 posts · Joined 2016. #4 · Apr 21, 2022. 350 truck motor – 4 bolt main VO217WK used in C10 to C35 trucks and industrial equipment came out of a MF combine. Built in Towanda, MI. Block 3956618 date B129 (Feb 12, 1969) Also used in 1969 302, 327, and 350. Heads 3927186 date: G318 (July 31, 1968) 64 cc, used on 69 302 SAVE FOR WHITE 68.On small block chevy`s I`ve never seen the suffix code at the start of the numbers, there always last. ... but then I just went out and bought a Chevy Parts Interchange book. 3970010 is the block that I started with on the 350 that turned out to be bored 060 over and the cam had a bearing 010 over. 1965 Plymouth Fury III Sedan 383 …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. Attachments. 3970010 2 bolt …7034 posts · Joined 2011. #8 · Jul 10, 2019. 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 in Mexico.The 2014 Chevy Equinox is a reliable and dependable SUV that has been a favorite among drivers for years. But how long can you expect it to last? Here, we’ll explore the expected l...Mar 26, 2012 ... Chris shows you how to tear down a junk yard small block Chevy 350 engine to prepare it for rebuild. BUY Tools & Products Mentioned: ...The Chevy big/small-block engine VIN (vehicle identification number) is a combination of digits that indicate the type of vehicle the engine is installed in, the model year, and the assembly plant. The engine VIN also contains six digits that are used to denote the last six digits of the vehicle’s VIN. The engine’s VIN is important to some ...Chevy Small Block Engine Casting Codes. 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. Choose Group to View Engine Block Codes.Big Block Chevy Dart 308, 320, 340, 360, 370, PRO1, Iron Eagle Step 1: For best results, it is necessary to check the stud girdle for fit before final installation. The stud girdle is designed to fit only Dart 308, 320, 340, 360, 370, Pro1, and Iron Eagle cylinder heads. The application is stamped on the stud girdle.Casting number 3970010 is a very desireable block it is a 4 inch bore used for late 327s, Z28 302s, and heavy duty 350s used as performance, truck, and industrial engines. They all vary as to being 2 or 4 bolt mains.Mar 11, 2009 · 1 post · Joined 2010. #6 · May 15, 2010. i have a small block 3970010. lg1969 said: It's used on 69' 302 Z/28 4 bolt main. 327 truck and industrial. 350 from 1969 - 1980. The block can be either 2 or 4 bolt main. You have to look at suffix letter in front of the block on the pass. side. Behind the alt. Small Block Chevrolet. LB=Long Block ... 70 0-B-24 3970010 350 2 SB KO304CNV, canadian 70 D-2-0 3970010 350 2 BB VO406CNN ...44 posts · Joined 2004. #1 · Feb 20, 2005. Hi everyone. I am going to purchase an engine with 3970010 as the casting numbers on it. The books indicate that this block could be a 302, 327, or 350. It is a four bolt main and my goal is to convert this block into a 383. 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 ... Jan 3, 2022 · Casting number 3970010 is a common small block engine casting. It was used in 1968 on the 327 2-bolt engines used in the "A" body, and it was used as a 350 block from 1969 through 1979 as both 2-bolt blocks and 4-bolt blocks in Chevy cars, trucks, and Vette. It was used in horsepower applications from 185 through 370. 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. Be nice to know what year it was casted. I have 3 E 17 on the right side between the frost plugs.Oct 6, 2010 · The block number - in this case 3970010 - is not the same as the block alloy casting codes (010, 020) that show alloy content and are cast inside the timing cover area on the front of the block. That's correct,and you may need to pull the cam gear to see it.It's the nickel and tin content in the block. The #3970010 casting block is the most common four-inch bore block ever made. It comes from a 350 and likely has a forged steel crank, but the heads are terrible for performance improvements. The design uses 1.72-inch intake valves, measuring out to around 8.2:1 when appropriately installed.Restore60s said: Original starter number for your block is #119497. Thats a Delco part #. Walked out to the shop & wrote the number down.---:thumbup: Kind of a broad statement. 4 starters for any given chevy small block. 153 tooth flexplate. 168 tooth flexplate. 153 tooth flywheel.re: 3970010. Can you post the id letters and numbers that you see on the engine block on the the small extension of the block surface just below and ahead of the head on the passenger side. I have some books that might reveal some info re: the year of the engine. BTW my own 383 stroker has a number that I cannot seem to find anywhere …Harmonic Balancer. HI GUYS, I'M JUST GOING THROUGH AN ENGINE THAT I PICKED UP A WHILE BACK. THE BLOCK ID # IS 3970010 WHICH IS A 350 USED FROM 1969-1980 ACCORDING TO MY BOOKS "chevy small block interchange manual" and "chevy small block parts interchange manual". THE # ON THE HEADS IS 462624 USED ON 350 FROM 1975-1986 FROM SAME BOOKS.A user asks if SBC #3970010 is a good block for rebuilding and gets various replies from other users. The block is a 2 or 4 bolt main cast in Mexico and used in different models and years of Chevy cars …Thanks. i ran a Hencho en Mexico 010 Block , had thicker Cylinder Walls than the USA 010 Blocks. stock GM Chevy 3.480" Crank Rod Journals turned down 2.000" small journal Carrillo 6.000 HBeam Rods. M55HV oil Pump Ed Hamburger Oil Pan full length kickout alum. 4.030x3.480. made 720 HP @ 9000 RPM. 483 TQ at 6700 RPM.Loaded in 1 ms.. There are 2,506 casting numbers in the database.2,506 casting numbers in the database.Hi guys, hoping someone can set me straight about the block I have. I have a bare block that has casting number 3970010, it is a 4 bolt main block with the main caps stamped 2842, it also has 010 buy the oil filter housing which means 10 percent more iron or nickel which should mean a better block.We we see a 010 020 block, and for Chevrolet, the 307/350 was a high percentage of engines made in the 70's. At one time, the Chevrolet division had more model engines than all the other GM lines combined. 1960's 70's. Pontiac, Buick, Oldsmobile, Cadillac had mostly one design engine. with 2-3 cubic inch separation 350/400/455 …Engine Casting Block #3970010 - Chevy Message Forum - Restoration and Repair Help. Chevy Forums FREE technical assistance for your restoration and repair. …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.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.350 Rebuilt Chevy Small Block Engine Block # 3970010 with Edlebrock Intake Manifold This engine is in good rebuilt condition. The intake manifold is made by Edlebrock. This item is listed as Pick Up Only, but if you are interested in it and are willing to pay for the cost of shipping, please send me a message with your zip code and I will find ...Chevrolet Engine Block Numbers. All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. ... Bolt-In 9-Inch Rear End Swap for 1988-98 Chevy Trucks Builds and Examples [ February 15, 2024 ] Making A Checkered Flag Shift Knob Builds and Examples ... 3970010: 350: 2-Bolt or 4 … Fresh 69 Camaro Z/28 302 DZ complete engine. This is the real deal, black casting # 3970010 casting date E 14 9 (May 14, 1969), engine pad stamp code V0527DZ (May 27). Cylinder heads casting # 3927186 casting date E 27 9 (May 27, 1969). More pictures and details coming soon. This is a great complete engine. Real four bolt main, correct original ... The 3970010 block casting number was used from 1969-1979.... But the "AAB" code narrows it down to the 1976 model C-60 (big truck chassis) like a grain truck, heating oil delivery truck, Fire tanker truck, etc. So block is a 1976. Listed as 8.5-1, but will actually measure out a bit lower than that, more like 8.1-8.2:1.Big Block Chevy Dart 308, 320, 340, 360, 370, PRO1, Iron Eagle Step 1: For best results, it is necessary to check the stud girdle for fit before final installation. The stud girdle is designed to fit only Dart 308, 320, 340, 360, 370, Pro1, and Iron Eagle cylinder heads. The application is stamped on the stud girdle.Same engine the stamp number passenger side front behind alternator on the block is T51509012 Any help would be appreciated . Reactions: crunchyg. TXK20 New Member. Joined Jan 3, 2015 Messages 10 Karma 1 Location Dallas, TX Car '82 Chevy K20 Jan 3, 2015 #2 Casting No. 3970010 = '69 327 from Camaro, '69 327 from trucks and …
Mar 15, 2006 · Harmonic Balancer. HI GUYS, I'M JUST GOING THROUGH AN ENGINE THAT I PICKED UP A WHILE BACK. THE BLOCK ID # IS 3970010 WHICH IS A 350 USED FROM 1969-1980 ACCORDING TO MY BOOKS "chevy small block interchange manual" and "chevy small block parts interchange manual". THE # ON THE HEADS IS 462624 USED ON 350 FROM 1975-1986 FROM SAME BOOKS. . Rotten egg smell when burping
THE BLOCK ID # IS 3970010 WHICH IS A 350 USED FROM 1969-1980 ACCORDING TO MY BOOKS "chevy small block interchange manual" and "chevy small block parts interchange manual". THE # ON THE HEADS IS 462624 USED ON 350 FROM 1975-1986 FROM SAME BOOKS. THE HARMONIC BALANCER ON THE OTHER …Small Block Chevy BLOCK # 3970010 Engine Block Casting Numbers This is probably the most common 4" bore SBC Block cast. It has been used in many different applications. Only way I know to be sure of 2 or 4 bolt mains is to pull pan.SBC BLOCK # 3970010 Engine Block Casting Numbers This is probably the most common 4" bore SBC Block cast. It has ...The #3970010 casting block is the most common four-inch bore block ever made. It comes from a 350 and likely has a forged steel crank, but the heads are terrible for performance improvements. The design uses 1.72-inch intake valves, measuring out to around 8.2:1 when appropriately installed.Chevy Small Block Engine Casting Codes. First Generation Pictures; ... Passenger/Chevelle/Chevy II/Corvette/Camaro : 3970010 : 1970-80 : 350 : 145-350If you are looking for information on how to decode the suffix codes and stamped numbers on your small block Chevy engine, this webpage is for you. It covers the codes from TJT to TXB, and explains what they mean in terms of year, CID, application, VIN, HP, and more. You can also find links to other related webpages that cover …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. ... A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds, restoration, modifications, classifieds, …The 2014 Chevy Equinox is a reliable and dependable SUV that has been a favorite among drivers for years. But how long can you expect it to last? Here, we’ll explore the expected l...Quick example to help show what the markings on your engine mean. Your engine may have other numbers or symbols but this should help in a broad sense.Here is...Find CHEVROLET Chevy small block Gen I Accessory Brackets & Eliminators and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central ...The block is a 3970010 350 and I will go from there. When i dissassembled the engine I found that the engine had been rebuild already with very low miles on it. The inside is a clean as if I just built it, there is …the year specific should be on bell housing flange at top of block behind distributor, will start with a letter ,a= january,b=feb etc,the second and third will be digets,the second ones are the day and third diget is the year so if the last diget is a6 it would be a 76 block..your engine is a 350 1969-1979 with 200,255,270,300,330,350,370 horse …re: 3970010. Can you post the id letters and numbers that you see on the engine block on the the small extension of the block surface just below and ahead of the head on the passenger side. I have some books that might reveal some info re: the year of the engine. BTW my own 383 stroker has a number that I cannot seem to find anywhere …The block number - in this case 3970010 - is not the same as the block alloy casting codes (010, 020) that show alloy content and are cast inside the timing cover area on the front of the block. That's correct,and you may need to pull the cam gear to see it.It's the nickel and tin content in the block.C3 Tech/Performance - 1970 LT1 engine number - My 350 engine has an engine number starting with CEC. The block # is 3970010. I ordered this engine new over the parts counter from a Chevy dealer in 1972. I thought it was a 1970 LT1, but the CEC prefix doesn't match up with anything I can find in the books. What does...Sep 19, 2013 · Chevy’s First-Generation Small-Block V8 Casting Numbers. 10036033 Small Block V8 350, 4-bolt, Goodwrench crate engine, 2-piece rear seal. 10051182 Small Block V8 2 bolt, Bow Tie block, 3.75-4.30 bore, 1-piece rear seal. 10051184 Small Block V8 4 bolt, Bow Tie, 4.00-4.160 bore, 1-piece rear seal. .