Chevrolet Big Block F-1/F-2 CrankDrive Dual Accessory Drive?:Yes, Extended Length +$1078 – Pinion snubber mounting provision

– Pinion snubber mounting provision

• Machined for 4 3/4″ bolt circle

OA-MUS156-3DBT - Optic Armor coating inside and out

PN : RS07890430

• Upper & lower spring seats

Chevrolet Big Block F-1/F-2 CrankDrive Dual Accessory Drive?:Yes, Extended Length +$1078 – Pinion snubber mounting provisionCrankDrive (External Gear Drive) The ProCharger CrankDriveTM positions the supercharger higher than other gear drives to allow for better steering component and frame clearance Lightweight design Easy to assemble, disassemble, and swap gear ratios Complete assembly for specific engines, no sourcing additional components Optional alternator drive (SEE FOOTNOTES) Optional fuel pump drive Allows engine to rotate both directions for servicing Optional