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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | can anyone help me tell what this engine is ? casting # 3970020
also the vin number stamped on front of the block just above the water pump is V0524THA the truck it came from was a 71 chevy c/10 pickup the engine sticker on the finder well said it was a 320 cid but ive never heard of a 320 v8. all the research ive done has left me still clueless all i can come close to is it might be a 327/350 made somewhere between 1967 and 1971
| | | | | Joined: Dec 2008 Posts: 898 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 898 | My book says 3970020 = 1969-73 307 cu. in.
Brian
1955.2 3100 Truck
The older I get the more dangerous I am!!!!! | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The engine code comes up as a '71 200 hp 307 w/2bbl carb and manual transmission.
Bill Burmeister
| | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | thanks for the help fellas, suxx that is a 307 tho lol | | |
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