This is the crankshaft we use in our Pro Drag SR20 engines making over 2000+hp. This crank was specifically designed for this application for strength and durability. The factory stroke allows us to have a better rod ratio for reduced piston scuffing at high boost and a larger connecting rod for strength. We also implemented the direct oil holes for the connecting rods. With increased boost comes increase vibrations in a 4 cylinder. So we increased the flywheel bolts size to 1/2-20 so we can use Top Fuel L19 flyhweel bolts. The damper threads were upgraded to 3/4-16 so we can use a large ARP bolt.
- 86mm Stroke
- Billet 4340 Chrome-moly
- Shot Peened, Heat Treated, and Nitrated
- Direct Rod Bearing Oiling Holes
- 1/2-20 Flywheel Bolts
- 3/4-16 Damper Bolt
- Full Weight