SRP Pistons 455 4.210 Stroke 4.185 Bore PontiacSpeedShop
Flat Top, 4.185 Bore, 1.480 CD, 0.980, Pin Dia, Set of 8. Will work with stock 3.25 inch main 455 crankshaft in a .034 over 455 block or with an aftermarket 3 inch main diameter 4.210 stroke crank in a 400 block. Note: wristpins are standard Pontiac .980 diameter so order standard 6.625 Pontiac rods, not BBC rods with .990 pins. Bore in 4.185.