Procomp Electronics 4091 - Procomp OEM Iron Crankshafts

These crankshafts are designed to replace stock crankshafts that have seen better days to a mildly-built street engine. Featuring precision grounding, micro-polishing and standard/standard sizes bearings. Crankshafts are balanced and ready to install right-out-of-the-box with no more hassles from poor quality crankshaft cores.