does anyone know what kind of pistons to use on 350 diesel block with 425 crank,and bb chevy rods. i been tryin to research this combo and thats as far as i have found. this combo is supposed to make a 440 small block olds. thanks for your time,hope to hear from someone who has done this so i would know about any problems.

 

Welcome aboard

I can't answer your question but hang in there the engine gurus will be with ya shortly

 

We have numerous members with engine building/combinations experience, like Jamesbo said, am sure there are good answers forthcoming. Welcome to CO.