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Product ID: 4340Crank3.400
4340 Steel 3.400 Stock Stroke Crankshaft
4340 Steel 3.400 Stock Stroke Crankshaft
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This is a GN1Performance "STOCK STROKE STEEL CRANK 3.400 " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.

Crank weight is 43lbs! 

KEEP IN MIND THIS IS A 4340 CRANK SHAFT, NOT 4140. THIS 4340 MATERIAL WILL SUPPORT 1000-1200 HP EASILY.  

This is a 2017 version, no knurl where the rear main seal sits!

 
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Price: $650.00

 
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