Crankshaft - 6 Bolt

This crank is popular for doing a 543" stroker setup in an "RB" (413/426/440) block. This crank features the 2.2" (Chevy) smaller and lighter rod journals which allow you to use any off the shelf big block Chevy rods with perfect side clearance. Crank has the following specs: Stroke: 4.500" / Block Type: RB / Main Journal Diameter: 2.750" / Rod Journal Diameter: 2.200" / Rod Journal Width: 2.009" / Pre-Balanced Bobweight: 2550 Grams / Counterweight Diameter: 7.480" / Flange Bolts: 6 x 7/16".