Stroking the crankshaft to a maximum 81mm will maintain the RPM ability intact. Bores could be brought out to 83mm, but try out to maintain it below 82.5mm. There is not any need to have with the Formulation Atlantic crankshaft. Reject blocks that will want 83mm to wash up, for https://alexisqqetq.fitnell.com/67355670/about-4age-20v