Difference in V6 blocks
What is the difference in the engine block from 305 to 351 to 379 to 401? Is it just to cylinder bore diameter. I understand that heads will be different as well as carburetor options. I'm wanting to know about the block only. Thanks for any incite.
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USMC Retired
Pollock, LA.
Own a 1961 GMC 4000 (Fontaine Flatbed) with a 305B engine
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