Piston and Ring - 23 Degree Flat Top - Forged - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 5.00 cc - Small Block Chevy - Kit Brand- WISECO-PRO TRU MPN PTS503A3 . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO
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