3970014

Jul 04, 2024
Have 014 block! I'm thinking of replacing my special hi-perf monster 307 engine with the original block/heads. I read all about those "famous" 010" blocks but mine is a 014 block. One person in SoCal just told me that this is a special hi performance block with a higher nickel content than the 010's, & if it's dated before 1972, it's as rare as ....

What year is a 350 Chevy engine with casting number 3970014? 3970014 350 69-77 Pass,Chevelle,Camaro, Nova,Monte Carlo 2 or 4 bolt main 3970014 350 69-79 Truck 2 or 4 bolt main 3970014 350 72 ...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.3970014 2 bolt main standard bore engine block 69-79 year model Engine was running on 7 cylinders because of a exhaust lobe on the camshaft was trashed. post id: 7728180959. posted: 2024-03-17 17:41. ♥ best of . Avoid scams, deal locally Beware wiring (e.g. Western Union), cashier checks, money orders, shipping.The United Nations recognizes 195 countries in the world, and there are just more than 4,000 cities with a population of more than 150,000. That leaves you with just a few quadrill...Chevrolet Master. 314 Answers. Hello Scott...there should be an emissions hose routing diagram under the hood or on the front header above the rad. If it is missing. the link may help you out. 1971 Chevy vacuum lines. 1971 Chevy vacuum lines. youtube.com.High nickel block.Stud the bottom end,square everything (machine work).I've used this very block in several drag motors.Making 580H.P right now with one thats 7 years going strong...600 H.P is what I'd rate it at pretty easy. (best block to use IMO for a drag app.) with less than 400 cubes. Reply. 07-30-2010, 09:33 AM. # 4.Engine Block 3970014: 350/300hp with 2 and 4 bolt mains T1107= Tonawonda engine plant, Nov 7th CNR = 1970 Passenger Car 350/300hp with auto trans 10= 1970 Y= Wilmington Delaware plant which built passenger cars 117057= last 6 digits in the VIN of the car Heads 3947041 = 1969-70 350/300hpSome of the later model blocks have the casting number on the passenger side of this ledge. 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 individual letters found on blocks like GM or CFD for the Central ...Could be anything from a 302 to a 350 if OEM cranks are used, most anything is possible up to ~400 cid w/aftermarket cranks in the -010 block. They have a great collection of sbc casting numbers. GM never put a 327 in a 68 SS camaro. If it is a 68 camaro 327 then it is either a 210hp or a 275hp 327.11400 posts · Joined 2002. #4 · Aug 29, 2004. Look above the casting numbers and you`ll see "hencho en mexico" meaning made in mexico, this is a target master 4 bolt main block. Honestly, I don`t like these blocks, some have problems out of them and some don`t, some liked to crack while others were just made of poor materials and workmanship.Notice the rear main seal on the top photo is one big seal whereas the bottom there is no seal shown but it fits over the ridge in the back and could leak at the joint (which is why you off set the seal about fifteen degrees and use sealant). Found a two piece seal photo. The seal is the blue bit. Big Dave.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 desirable in high performance …350ci V-8 (casting#3970014, suffix#10805CKB) Rebuilt in 4/22 - $5,500 spent Edelbrock E-Street Heads Black Valve Covers with Red "Chevrolet" Script Edelbrock Air-Gap Intake Edelbrock 4-Barrel Carburetor Chrome Air Cleaner Cerakoted Headers Newer Mufflers and Exhaust Newer Battery Transmission Muncie 4-Speed Manual (#3925660) Hurst ShifterDOI: 10.1016/J.ENERGY.2015.08.097 Corpus ID: 108995282; Efficiency improvement and CO2 emission reduction potentials in the United States petroleum refining industry @article{Morrow2015EfficiencyIA, title={Efficiency improvement and CO2 emission reduction potentials in the United States petroleum refining industry}, author={W. Ross Morrow and John J. Marano and A. Hasanbeigi and Eric Masanet ...How to find out the CID of a 3970010 engine number identification. 3970010 shows 68-1969 327 2 bolt and also shows 69-1979 3970010 350 185 370 2. This id # located on drivers side rear engine block stamped on pad. R.S.rear engine block has c-110 on it and R.S. front engine block has 12347 and drivers side of block 371 and 386 and 11618N suffix ...VF292800 - is an example of a over the counter crate engine. "2800" is the last 4 digits of the GM part # for the crate engine assembly. The final digit could be a year code. Another example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped as follows: A0198005 (A = january, 01, 9800 = pn, 5 = 1985).U can check your block casting number on many w/s to see what year it may or may match - #3970014 would be a good one for ya. BTW stamped numbers can always be restamped and there are plenty of '75 blocks still availible so u could take this as far as u want to go with it.will 1984 305 heads (casting #14102187) bolt onto a 1971 350…. will 1984 305 heads (casting #14102187) bolt onto a 1971 350 block (casting #3970014)? Yes it will bolt on to it. All small block chevy heads will interchange, except for the 400 small block-it has steam blocks.The 305 heads you have came from 87-91 model car.C3 General - 72-what production # was the block switched from 010 to 014? - DOES ANYBODY KNOW AT WHAT PRODUCTION # THE CYLINDER BLOCK WAS CHANGED FROM 3970010 CASTING TO 3970014 CASTING .....IN 1972. I KNOW THAT 3970014 WAS LATE PRODUCTION BUT AT WHAT # DID THAT START AT? IS IT POSSIBLE THAT SOME LATE PRODUCTION CARS...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.Flat top or dish pistons only, no gas ported pistons. Cylinder heads must be unaltered approved OEM and minimum 76 cc combustion chamber. GM approved head numbers are - 14079267, 3986336, 3986339, 3986339X, 3986388, 3932441, 376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493, 3951598, 468642, 330862, 333882, 3998920, 3998991, 3998993 ...So it turns out the block is a casting number 3970014 and the heads are 3973487. Both block and heads have the same date codes. The block and heads have never been rebuilt or seperated, wondering if this is a decent starting point to build a 350hp motor ? the guy is wanting $400 for it, nothing else except inlet manifold with it.1970 Chevy 350 4 bolt main Engine, CRE code for Chevelle built at Baltimore plant, 041 heads, intake, 3970014, L 5 9, 7042211 Quadrajet (1972 Chevy) 17058204 Quadrajet 17082226 Quadrajet Several other Quadrajet carbs . 1985 Monte Carlo SS Quadrajet Carb. 1969 350/300hp manual trans. Quadrajet Carb. 7029223,239 posts · Joined 2003. #1 · Oct 5, 2006. Hi, and thanks in advance for any help. I am looking at a June 1970 Z-28. It has a 3970014 block in it. I thought they came with the 3970010 blocks. The seller swears that he has had many 1970 Z's with the 3970014 blocks, and they are original. My books show the 3970014 was used in a 70 camaro but ...Step 1. Locate the engine block code. This series of seven to eight digits begins with a letter and is stamped directly on the engine. Look behind the distributor on the passenger side of the block if it is a six- cylinder GM motor. On a small block GM V8, it is stamped in front of the cylinder head on the passenger side.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.In response to rls8836. The "CMA" suffix code is a 1974 Nova 2-bbl 145 horsepower 350 originally hooked to a TH-350 trans. I believe your block casting # "8970014" could actually be 3970014 which is a 350 built with both 2-bolt and 4-bolt mains with horsepower ratings as high as 300 in '70 and less in later years depending upon gross or net ...Casting 3970014 2) - 1972 Chevy 1/2 ton. Suffix V0420TDJ. Casting 3970010. The suffix code doesn't show the cast date of the blocks, it shows the date they where installed in the truck. Either one or both could of sat waiting to be used for 6 months or more. 10-23-2017, 01:59 PM ...Most all gm cars are wired about the same as far as the color of the wires. Alldata can provide you with the best wiring diagram possible and you get everything about the car for a month on line ( you can print anything) for about $10 on the one car all cars for about $168 per month we buy it all but you can get your own car cheap and it's the best thier is.The 1970 Chevrolet Nova was offered only as a two-door coupe or four-door sedan. Basic Novas had a 90-horsepower 153-cubic-inch four-cylinder engine, a new 155-horsepower 250-cubic-inch six, or a popular 200-horsepower 307-cubic-inch V-8. Jul 25, 2019 •.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 desirable in high performance …"rebuilt 350-all new kit parts bored .030-.467 lift cam-224 duration @50--all new stainless valves- ... Read more about the seller notes "rebuilt 350-all new kit parts bored .030-.467 lift cam-224 duration @50--all new stainless valves- springs -retainers-keepers also new hei dist-rebuilt afb carb- double roller timing chain anf flexplate also all new- comes with block hugger headers not ...Chevy 350 engine. Pulled from a 1970 c10 pickup truck. Engine was running when pulled, no smoke. Engine needs resealing or rebuild. Sold as is. Pickup in Helotes TX. Have engine hoist and can set this in the back of your truck. Block casting number 3970014. 68-79 350 car and truck engine. This engine will have 2 piece rear main seal.How to wire tachometer 69 camaro with MSD distributer. Do not where to hook up the brown wire, on the distributer, which is MSD, also the white wire is not conected. removed a working sun tac and replacing with in dash factory tac. hope this helps. Posted by anthony germano on Sep 18, 2012. ALSO, YOU NEED TO CHANGE ORIGINAL TACH SIGNAL WITH MSD ...Sep 20, 2010 · MCC # 843. Like. DZAUTO. 11349 posts · Joined 1998. #5 · Sep 21, 2010. Only two Chevy engines were externally balanced, SB400 and dirivatives, such as 383 and 454BB and dirivatives such as 468, 496, etc. Those engines require BOTH a balancer and flywheel with weight added to one side for balance purposes. ALL other Chevy V8 engines (WITH A 2 ...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.4. ENGINE BLOCK CASTING NUMBER 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 desirable in high performance applications …The 3970014 is a 350 block, that was used in passenger cars from 69-77 and trucks from 69-79. Neither T3 or CONV are casting dates, though Tonawanda blocks often have a large "T" cast in them. Block casting dates consist of a letter and either 3 or 4 numbers. The letter is for the month "A" (January) through "L" (December), the next 2 numbers ...In response to rls8836. The "CMA" suffix code is a 1974 Nova 2-bbl 145 horsepower 350 originally hooked to a TH-350 trans. I believe your block casting # "8970014" could actually be 3970014 which is a 350 built with both 2-bolt and 4-bolt mains with horsepower ratings as high as 300 in '70 and less in later years depending upon gross or net ...3970014: 350: 2-Bolt or 4-Bolt: 3970020: 307: 2-Bolt: 3970024: 307: 2-Bolt: 3999289: 454: 2-Bolt: 3999290: 402: 2-BoltTake the headgasket and piece of cardboard about the same size. Using the headgasket as a template, mark each of the bolt holes on the cardboard with a sharpee marker, pencil or pen. Also outline the headgasket and mark the top of your drawing. Now starting from the center bolt as number 1, move either to the right or left, up or down to the ...They are the 1969 model year (accessory holes) version of the 1968 McKinnon 3911032 and Tonawanda 3917290 heads. These 3927185 heads are Saginaw cast by the looks (no T on them) but the cast marks appear to be rough cast not machined so they may be machined by Tonawanda or McKinnon rather than Flint.1971 Chev 350 270 hp Core Engine Block casting # 3970014, casting date F 1 71, stamped C J D, which descripts: Impala, Camaro, Nova and Chevelle with 350 turbo. 4 bbl intake with Holley carb, 2 bolt main, cast crank. Core engine, $200. 1973 Chev 350 Short Block, 4 Bolt Main Core. 1973 Chev 350 Short Block, 4 Bolt Main Core. ...| 1968, 1969, 1970, 1971, 1972, 1975, 1976, C3, casting, Corvette, engine, exhaust, left, manifold, number, numbers, rightDefault Re: 350 block casting 3970014 Here's the applications that I found: 3970014 350 69-77 Pass,Chevelle,Camaro, Nova,Monte Carlo 2 or 4 bolt main 3970014 350 69-79 Truck 2 or 4 bolt main 3970014 350 72 Corvette late '72,200 HP,255 HP 4 bolt main" End QuoteAug 20, 2012 · A user asks about the RAI 1238 code on a 350 block casting 3970014 used in a 68 Chevelle restoration. Another user replies that it is a rebuilders id stamping and that the block was used in many vehicles.11211 posts · Joined 1998. #2 · Apr 30, 2007. Strug, It is not at all unusual for GM's casting numbers to be missing a number. Someone probably screwed up at the foundry. Bill Koustenis. Advanced Automotive Machine Waldorf Md. Enginerepairshop.com. 1971 Heavy Chevy - original owner.A forum discussion about the differences and similarities between two Chevy block castings, 3970014 and 3970010. Learn from experts and enthusiasts about the history, performance and myths of these blocks.Today Cousin Mike @landoncustomclassics dropped off a Mystery Small Block Chevy that he's had for a while. We don't know a lot about it, but one things for s...I have an engine with 3970014 on the back. One of the heads is a 441, the other says 126. What did the 126 come off of? This engine has points distributor, Carter …Engine Block 3970014: 350/300hp with 2 and 4 bolt mains T1107= Tonawonda engine plant, Nov 7th CNR = 1970 Passenger Car 350/300hp with auto trans 10= 1970 Y= Wilmington Delaware plant which built passenger cars 117057= last 6 digits in the VIN of the car Heads 3947041 = 1969-70 350/300hpFrom 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.The Big Al. 16098 posts · Joined 2007. #2 · Mar 3, 2013 (Edited) TDB = 1980 350cu 190hp GM replacement engine. The casting is a3970010 I have seen the last number left off. Could be a 2 or 4 bolt main. Note: Engine could have been rebuilt and used a 350 block for the 327. Al.Slip on. 4" high heel. Patent leather, leather, suede or denim upper. Leather or synthetic, leather lining, leather sole. Made in Brazil. Web ID: 3970014. shipping & returns. Buy Women's Lou Pointed Toe High Heel Pumps at Bloomingdale's today. Free Shipping and Returns available, or Buy Online and Pick-Up In Store!Mar 10, 2011 · A user asks about the performance and build of a 3970014 block, a heavy duty Chevy engine. Other users reply with suggestions, tips and information on the block's history and features.Sep 20, 2010 · MCC # 843. Like. DZAUTO. 11349 posts · Joined 1998. #5 · Sep 21, 2010. Only two Chevy engines were externally balanced, SB400 and dirivatives, such as 383 and 454BB and dirivatives such as 468, 496, etc. Those engines require BOTH a balancer and flywheel with weight added to one side for balance purposes. ALL other Chevy V8 engines (WITH A 2 ...Refer to this Chevy 350 Spark Plug Wiring Diagram before looking for options to replace them.. NGK R5IX Iridium X Spark Plug: Engineered with iridium, the most durable and conductive material for spark plugs, the NGK R5IX Iridium X stands out as a top choice for Chevy 350 engines. Its exceptional resistance to wear and corrosion ensures long …Summary. Solid-state arrays are the primary external enterprise storage solution for demanding transaction-oriented primary storage workloads associated with structured data. Here, Gartner analyzes 16 SSA product families across high-impact use cases for infrastructure and operations leaders.3970014 1972 350 3970020 70-73 307 3970041 65-67 327 It's possible it's a service replacement block, but it's also possible the seller is mistaking the "2" for a 3. Especially if the last 0 is missing or unviewable. You don't want to find out it's really a 307 and not a 350. I have two bits of sage advice: Don't buy any block sight unseen.1972 Corvette Main Specs. Uniconstruction: fiberglass reinforced plastic (FRP or "fiberglass") body, backboned by a steel cage outlining the passenger compartment. Principal members - underbody, front and rear end assemblies, dash panel and hinge pillars are bonded, riveted, or bolted together and to each other.Price: $350.00. For your review is a 1970-73 SBC four (4) bolt bare block casting #3970014, listed as a LA built Camaro. The casting date is D 7 70 and the VIN #'s 10A151785 …The HA code on the right front ID plate means that it is a 300hp 350 SS with a Manual Tranny. The casting # 3970014 doesn't show up in my Camaro book-could it be 3970010? That is about the most common block. Sometimes Chevy made a "subset" of blocks which were almost like their forerunner(ie. the upgraded 3970010 could be a …Apoteka BEOLEK in Beograd open now. Braće Jerković 108 V, Београд, Beograd 11000, Serbia, phone:+381 11 3970014, opening hours, photo, map, locationThe T0414CNR decodes as follows: "T" is for the Tonawanda engine plant. "04" is April, "14" is the 14th of the month. "CNR" is the engine suffix code for a 350/300 with a 4bbl and an automatic from a 1970 passenger car (Impala, Nova, Camaro, Chevelle). 3970014 is the block casting number. "D1370" is the block casting date "D" April, "13" 13th ...462624. 14031372. 14037671-W. 14037672-W. This site is for Corvette C3 enthusiasts and has lots of information pertaining to Corvettes built between 1968 and 1982.Year Date Casting Size 2/4 Bolt BB=Bare Block Notes/Pad Number. 65 K-24-4 3782870 327 2 BB FI209H. 66 F-15-6 3849852 283 LB. 66 K-2-5 3858180 327 CE TI21bEA 67 CHEVELLE 275 4SP. 66 A-26-6 3858174 327 SB. 66 C-11-6 3858174 327 2 SB. 67 L-28-6 3892657 302, 327, 350 2 BB VOIIIMS, cracked, needs align bore. 67 K-9-6 3892657 302, 327, 350 2 BB VIII9MF.The Tonawanda version would have 014/024 (3970014/3970024) being 014 for the 350 and 024 for the 307 .If there are several casting numbers being used at the time that block was cast, as in 870 (327), 721 (327 Chevy II), then those numbers would also be on there if that same end form was used on all the small blocks being cast at that time.1 Answer. Most of those older cars had back seat that you push the seat cushion toward the back and a little under the back cushion. Once you have it pushed back lift up on the front of the cushion and pull toward you, it should come out.I believe that the back cushion will be bolted on, they should be located below the cushion.Ford Block Casting Numbers. Ford Casting Numbers Explained. Casting numbers tell when a part was ORIGINALLY designed.. Example: The breakdown of casting number C8OE-9430-D is easy using the charts below: C = Decade of 1960. 8 = Year of the decade (8th year of 1960), 1968. O = line / Manufacture code.Engine Identification. I'm looking to find out whatever I can about what I believe is a crate engine to my 69. The Eddelbrock intake manifold is painted yellow and the block has the following stamped on it: 06A104038. V0904TKB (The T may possibly be a 1, larger print than the first group of numbers.) I believe it is a 350 crate Edelbrock engine ...

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That 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 ...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.

How 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, please contact me and let me know.DOWN2EARTH INTERIOR DESIGN is a Pennsylvania Domestic Fictitious Names filed on July 26, 2010. The company's filing status is listed as Active and its File Number is 3970014. The company's principal address is 7604 Spring Ave, Elkins Park, Montgomery 19027. The company has 1 contact on record. The contact is Amy Cuker from Elkins Park PA.The Big Al. 16098 posts · Joined 2007. #2 · Mar 3, 2013 (Edited) TDB = 1980 350cu 190hp GM replacement engine. The casting is a3970010 I have seen the last number left off. Could be a 2 or 4 bolt main. Note: Engine could have been rebuilt and used a 350 block for the 327. Al.I have a 55 caddy that i am trying to identify the motor in (i am not sure if its stock or not), the casting number is 3970014. anybody have an idea as to what this is or where to find out? I will post a pic of the motor by the end of today. Thanks!

When 462624. 14031372. 14037671-W. 14037672-W. This site is for Corvette C3 enthusiasts and has lots of information pertaining to Corvettes built between 1968 and 1982.So it turns out the block is a casting number 3970014 and the heads are 3973487. Both block and heads have the same date codes. The block and heads have never been rebuilt or seperated, wondering if this is a decent starting point to build a 350hp motor ? the guy is wanting $400 for it, nothing else except inlet manifold with it.…

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strays showtimes near showbiz cinemas edmond Price: $350.00. For your review is a 1970-73 SBC four (4) bolt bare block casting #3970014, listed as a LA built Camaro. The casting date is D 7 70 and the VIN #'s 10A151785 … yoder and frey north baltimore ohiolisa boothe salary I think we have confirmed that the engine is not a 307, but rather a '74 350 2bbl confirmed by engine casting code(3970014) and the assembly code(T0104CMA). The CMA suffix was used for a '72 307 and a '74 350. The flywheel had 168 teeth and the starter had a 350 offset bolt pattern, instead of the 307/153 tooth combination. craigslist la paz baja californiasummerville doppler radarmodern brick mailbox 3932388 3956618 3970010 3970014 462624, 14071114 Notes: ALL, left hand dipstick, 2 bolt main, 7-bolt heads for long exhaust manifold 80-85 350 Block ID # VIN CODE "6,8" HEAD ID # 14010207 14010209 462624, 14071114 Notes: CARB/FI, right hand dipstick, 2 bolt main, 7-bolt heads for long exhaust manifold unimas schedule chicago Need torque specs for 83 chevy 350 cylinder head bolts. These specs may not be correct for your application. Verify your engine specs with a service manual for your year and model. Bolts or Parts Lube or Sealer Torque to: 7/16 Main Caps (2 bolt) Engine Oil 70 ft-lbs. 7/16 Inner Main Caps (4 bolt) Engine Oil 70 ft-lbs. 7/16 Outer Main Caps (4 ...Numbers matching lt-1 350 cid. Engine suffix code cky = 350 cid. 255hp/280tq 4 speed. Engine casting number 3970014 = 1968-79 350 cid. Engine date code d2872 = april 28, 1972. Muncie m-20 wide ratio 4 speed manual transmission. Transmission code p2e25a = may 25, 1972 m-20. Rear axle code ao = 3. 70 e = eaton posi-traction unit. levelland texas obituarieslucky cat poke companyscholastic answer key 2022 3970014 1972 350 3970020 70-73 307 3970041 65-67 327 It's possible it's a service replacement block, but it's also possible the seller is mistaking the "2" for a 3. Especially if the last 0 is missing or unviewable. You don't want to find out it's really a 307 and not a 350. I have two bits of sage advice: Don't buy any block sight unseen.Alan L. Colvin Corvette by the numbers also mentions that the 3970014 blocks were cast at the Tonawanda "metal casting plant" in 1972, however Alan's book also states that there were 5 facilities producing the block and that it is possible that one of the remaining four plants produced the block.