Molnar Technologies: BBC 4340 Forged Steel 4.250'' Crankshaft (1 Piece Rear Seal)

Molnar Technologies: 

Part Number: 454-4250DC6F-OPS-6385
Stoke: 4.250''
Main: Standard 454
Rod Pin Diameter: 2.200''
Minimum Rod Length: 6.385''
Bob Weight: 2300 Grams
Rear Main Seal: 1 Pc