Didnt know it was that easy


Administrator. .a car, a man, a maraca.
Staff member
Lifetime Gold Member
Mar 25, 1999
San Jose, CA, USA
There are A LOT (nearly infinite in scope) of other things I would do long before arbitrarily adding a .030 bore to a 4.125 block.
You'll see more gains by converting the engine over to Evans water-free coolant. I'm totally not kidding, you'll eliminate all of the hotspots where steam pockets form in the heads.
Go buy some dyno tuning time, or better yet, an EFI system.

Think of it this way, would you expect a 355 to make more power than a 350 all things equal... nope you wouldn't