Stroking the crankshaft to a maximum 81mm will retain the RPM capacity intact. Bores may be introduced out to 83mm, but try out to help keep it less than 82.5mm. There is not any need to have with the Method Atlantic crankshaft. Reject blocks which will need 83mm to scrub https://travistclml.blogscribble.com/26814545/everything-about-4age-engine-for-sale