Check out Egge Machine Company. They sell piston sets for the 413 motor, with largest oversize being .080. I'd sonic check the block first to make sure before going that large. Core shift might be an issue.


"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)