Description

Improved conversion kit for the crankshaft seal that is 100% new, and does not require crankshaft machining that fits the +4. The uprated Viton seal prevents rear engine oil leakage from the old tractor style seal, and the blow by that is associated with high performance engines. Machining of the crankshaft is no longer needed.  Must also order 100-015B Mandrel Tool for installation.