Home/2003-04 Cobra Pistons and Rods Pistons and Rods for Ford engines Call Manley Forged pistons, 18cc dish, 4.6 / 5.4, 3.572 bore $1,117.82 Manley Rings, plasma moly, file fit, 3.572" bore $264.93 Manley Rings, plasma moly, file fit, 3.552" std bore $264.93