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Click on image for the lowdown. 
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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: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | The 350 connecting rod is 5.7" and the 400 connecting rod is 5.565". A 400 block that is .030 calculates out to a 406 cubic inch. If I remember right a 350 crankshaft in a 400 block that is .030 is a 377. If you use a 400 crankshaft in a 350 block that is .030 you end up with a 383. Lots of combination's and each have their own things that have to be machined separate. | | |
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