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 You will be required to

You will be required to do whatever it takes to match your other pistons weight

One or two replacements might make sense

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

330 Gen 5 LT Direct Injection

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 You will be required to407 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 *