KB PERFORMANCE PISTONS KBPKB290.030 BBM 392 Hemi Piston Set 4.030 Bore +22cc MSRP: Was: Now: $604.99 Piston - KB Series - Hypereutectic - 4.030 in Bore - 5/64 x 5/64 x 3/16 in Ring Grooves - Plus 22.00…