I have a 96 xj stock engine, never been rebuilt and now have a tap/ knocking sound.....much like the sound I had several yrs ago that turned out to be a broken #5 piston ( skirt broke off one side of the piston). I replaced it and the rest of the pistons and rods but didnt have the time or the funds to do a complete rebuild at that time. I see pistons labled as 252 stroker 4.0 / 4.2 piston and rod sets on the internet...so...question is....are these a larger piston size or a longer stroke rod....and would these drop into my stock factory bore with the stock factory crank I have in my jeep now?
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4.0 stroker pistons and rod size
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