[Squirrel]

Id think that you would be ok with that, but im no mechanic by any means.

 

[orangustang]

There's no replacement for displacement. Stroke that beast out! Just be sure to lower your compression to around 8:1 if you want any sort of longevity out of your engine. Obviously, if you change the crank, you'll have to change the pistons and connecting rods at the same time.

 

[Squirrel]

Whats a surge valve?