Originally Posted by Doc Fiberglass
Hi mGo ....is this a 413 or 440 ? What rear end gearing are you going to use ?


The more I run numbers the more expensive the 413 proposition becomes. I already have a 440 with 6pack pistons. If I get them to zero deck the compression comes out to about 8,75 to 1 with the 413 head chamber. Is this doable, or are there different coolant passages in the block?