Ford SB 289 302 351 Windsor Bronze 0.500" Shaft Distributor Gear [Short] This Speedmaster 300M steel crank

This Speedmaster 300M steel crank gear

Intake manifold (Dual Plane)

is a direct replacement to the OEM crank gear

Although the GM heads are good pieces

and you can choose between plain polished

Ford SB 289 302 351 Windsor Bronze 0.500" Shaft Distributor Gear [Short] This Speedmaster 300M steel crankThese bronze distributor gears from Speedmaster are recommended for steel billet mechanical roller tappet cams and slot hard faced steel billet mechanical flat tappet cams. Bronze gears absorb the increased wear in special cams and magnetos and are easily replaced before costly damage to the camshaft gear occurs. The gears are precision machined from the highest quality aluminum silicon bronze alloy for maximum durability. Bronze distributor gears