Engine building problems please help!!
 

Ok I just ripped open my engine after I just bought it with a spun bearing. Now the cylinder walls are done for so I need to bore it out but I don't know how big? .020 or .040 over? And what would be the best pistons? I am think cp pistons and eagle rods but they are pricy!

Thanks for the help!

Okey dokey kidda, surely we know the score? Engine type, age, twin/turbo/na, how bad is the damage, what power you looking to achieve etc. All these will bear on what work you do and the type of parts you buy.
Also if its spun a bearing have you got a replacement crank lined up? A bit more detail should yield a bit more advice... ;)