Stroking the crankshaft to a highest 81mm will continue to keep the RPM capability intact. Bores might be introduced out to 83mm, but try to keep it beneath eighty two.5mm. There is not any require to the System Atlantic crankshaft. Reject blocks that will want 83mm to wash up, of https://jdm-toyota-4a-ge79482.ivasdesign.com/48750360/4age-20v-itbs-fundamentals-explained