The Moroso double-groove billet crankshaft pulley fits Ford 351–400 Cleveland and Boss 302 four-bolt crank applications and provides two grooves for dual-belt accessory drives. Machined from billet aluminum, it matches the four-bolt pattern and dual-groove spacing needed on compatible Ford Cleveland and Boss 302 engines for setups that require two driven belts from the crankshaft.
Moroso Ford 351-400 Cleveland/Boss 302 (4 Bolt) Crankshaft Pulley - Double Groove - Billet Aluminum