These big block pistons are an excellent choice for drag race applications. Compression Height figured using 9.780 block height with zero deck clearance. Dome pistons listed will not work with Edelbrock head #6045, 6040, 6055, pistons for these heads are available as special order. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. Bore: 4.600 Stroke: 4.000 Rod: 6.385 Deck: 9.780

Includes:
Pin #990-2930-15-51S (150g)
Double spiro locks (#990-042-CS)
Double pin oilers
Price per piston.