Jaw uses the industry standard six 3/8" bolts on a 2.782" bolt circle and is made of heat treated steel to provide long life. The center of the jaw has a .500" ratchet provision to stroke the motor over when running valves or setting timing.
RBS sells the bolts needed for this engine jaw 3/8-24 x 1.125" twelve point NAS #400-6125NAS you will need six.
Starter jaw spins counter clockwise so make sure this is correct for your application before purchasing.
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