421 Blocks (427-489 cu. In.)

Rotating Assemblies & Stroker Kits - 421 Blocks (427-489 cu. In.)

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Description: New Cast or Forged Crankshaft 4.210" Stroke Choose Desired Bore Size and Ring Type Flat Top, Dome, or Dish Pistons Specify Desired Compression Ratio...More Details »
Item #: BPI-4210-325-421
Condition: New
Icon piston assemblies usually ship in 1-2 weeks Custom piston assemblies ship in 10-12 weeks
Price: $2,549.00
Sale: $2,294.10
Save: 10%
Save: $254.90


Description: New Cast or Forged Crank 4.250" Stroke Choose Desired Bore Size and Ring Type Custom Butler/Ross Forged -8cc Flat Top, Custom Dome, or Custom Dish Ross Pistons...More Details »
Item #: BPI-4250-325-421
Condition: New
Custom piston assemblies ship in 10-12 weeks
Price: $2,449.00
Sale: $2,204.10
Save: 10%
Save: $244.90


Description: **Must use 1967 and later or aftermarket 14 degree heads for correct valve pocket angles** New Cast or Forged Crank 4.250" Stroke Choose Desired Bore Size and Ring Type...More Details »
Item #: BPI-461-325-421
Condition: New
Usually ships in 1-2 Weeks
Usually ships in 1-2 Weeks
Price: $2,249.00
Sale: $2,024.10
Save: 10%
Save: $224.90


Description: New Forged Crank 4.500" Stroke Choose Desired Bore Size and Ring Type Forged Flat Top Ross Pistons, Dish, or Dome Available Specify Desired Compression Ratio...More Details »
Item #: BPI-4500-325-421
Condition: New
Custom piston assemblies ship in 9-10 weeks
Price: $3,149.00
Sale: $2,834.10
Save: 10%
Save: $314.90


Items 1-4 of 4

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