Thread: 400 sbc build

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Originally Posted by garrett3698

I appreciate the the input and I will be further looking into this build based on your suggestions, one thing I did want to say though, it may sound bogus but the block casting number is 330817 which is a 70s-80s 400CID small block chevy, the number on the heads, manifold, and tbi all come back to a emissions 305 sbc.

It just seemed unusual that someone would pull the motor, begin the build with a 400 block and then crutch it down with emissions 305 junk. I guess there's no accounting for common sense. Maybe the fellows down at the Sonic Drive In told him that was the hot tip. Carry on.....

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