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Return to Parts List Category : D- Big Block (Low Deck) : Pistons (Stock Stroke - 383) ICN IC687.060 FRGD PISTON 4.310 DOME 4.5CC STOCK STROKE 3.380 1.094 PIN C/H 1.912 1/16 1/16 3/16 RING PACK $817.84   Bore 4.250 Stroke 3.380 O.E. Deck Height 9.980 Alloy 4032 Oversizes .030 / .040 / .060 Ring Pack 1/16, 1/16, 3/16 Rod Length 6.358 Compression Height 1.912 Pin 1.094 x 3.000 Dish/Dome .146 Dome -4.5cc Compression Ratio 75cc 80cc 88cc 10.7 10.4 9.6 Gram/Weight 674*190 Top Land 0.230 Valve Relief Intake .218 / 2.300 Valve Relief Exhaust .199 / 1.880