2403-4155 383 Small Block Chevy FX Series -16cc Dish Top SBC 23 Degree Forged Piston Set 4.155 inch bore Pin Dia.: 0.927" Comp Height: 1.125" Bore Size 4125 in 104690 mm Does your LS engine have

Does your LS engine have press fit rods

337 Small Block Chevy

One or two replacements might make sense

They are made to order and are NOT RETURNABLE under any circumstances

1/16" 1/16" 3/16" Gas Nitride Stainless Steel Top Ring - Napier Second Ring with Flex Vent Oil Control Rings

2403-4155 383 Small Block Chevy FX Series -16cc Dish Top SBC 23 Degree Forged Piston Set 4.155 inch bore Pin Dia.: 0.927" Comp Height: 1.125" Bore Size 4125 in 104690 mm Does your LS engine have407 Small Block Chevy, FX, Comp Height: 1. 125, 16cc Dish Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 750", ROD: 6, Approx Comp Ratio: 58cc 11. 05, 64cc 10. 39, 70cc 9. 79 *