SKU: AER-21106
21106 Billet, Big Block Chevy Drive Mandrel , 1" Shaft w 1/8" keyway Black anodized)

1" Mandrel goes to Chevy BB Balancer    5"  Overall  Shaft is 4"    1/8th"  keyway 

 Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.