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Signature Series Blower - Crankshafts

This series is designed to withstand the extreme pressures encountered when using a blower (Roots-type supercharger). LunatiĀ® Signature Blower Crankshafts have .125" radii on the rods and mains. They also have dual keyways, larger nose bolt threads, and enlarged flexplate flange threads for added strength.

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 Part NumberDetailsPrice 
P/N: 80440002 Signature Series Blower Crankshaft - Chevrolet Big Block 4.000" Stroke (2-Piece Rear Main) $2,149.05
P/N: 80441252 Signature Series Blower Crankshaft - Chevrolet Big Block 4.125" Stroke (2-Piece Rear Main) $2,770.50
P/N: 80442502 Signature Series Blower Crankshaft - Chevrolet Big Block 4.250" Stroke (2-Piece Rear Main) $2,149.05
P/N: 80445002 Signature Series Blower Crankshaft - Chevrolet Big Block 4.500" Stroke (2-Piece Rear Main) $2,182.48