I'm wanting to build the engine to run 15 psi of boost. I know my piston wall is 81.5mm and I am wondering if I buy 81.5mm pistons if they will fit in the block. I have more questions. Just wanting to see if this thread gets going

 

Of course your pistons will fit if the stock size is 81.5mm and u buy 81.5mm pistons although if your engine has high milage and the cylinder walls are tapered u might want to use 82mm pistons to make sure everything is fresh and perfect. If you ask that question you're probably not a mechanics so are you planning on getting it built for you? I have a full thread on engine internals build on the forum if you want more info here: https://www.evolutionm.net/forums/la...tep-guide.html