318 block
Eagle rods
KB 846 flat top forged pistons
.055th Fel pro gasket,
Cast Eagle crank
Comp XS282s 245/250 - .520/.540 cam

Block neeeded slight notching.

Makes 10.24:1 comp and Dyno 2000 says around 420-430HP with SP and mufflers using cast heads flowing 243 @.550