Wiseco K0091XS

Wiseco K0091XS - 4.6L 2V TFS -13cc Dish, 3.552" Bore Piston / Ring Set. Includes 4130 Chrome Moly Wrist Pins and Wiseco GNX Ring Set. These Pistons come standard with Valve Pockets for the Trick Flow Twisted Wedge Cylinder Heads.