Mike, find a late 70 or early 71 360 block. They should take at least a .070 overbore. The have the 360 crank off-set ground to 1.85 on the rods. Should get you real close to 400 incher. Don't know how long the crank would hold up. Would an aftermarket crank for the block be acceptable? Jim
Used SB Molodon oil pan for 318/340 mains. It has been modified for header clearance. I have used TTI, Hedman and Hooker's with this pan. It has been repaired. The pickup tube broke off and the crank knocked it around. The pickup tube was repalaced and has about 50 runs on it. $75 + frt
PM me...
I use that cam in my 416. 72cc W2 open chamber heads, Wiseco flat top pistons zero deck height, 1.6 rockers. I have .085 piston to valve clearance on the intake and a little over a .100 on the exhaust. With a .039 gasket. The cam is installed a 108* also.
Aren't 63cc heads closed chamber? You...