2305-4155 383 Small Block Chevy FX Series -21cc Dish Top SBC 23 Degree Forged Piston Set 4.155 inch bore Pin Dia.: 0.927" Comp Height: 1.425" 1.2-1.2-3MM The price of this option

The price of this option assumes that it is done at the time of order

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

289 Small Block Chevy

0 mm Gas Nitride Stainless Steel Top Ring - Napier Second Ring with Flex Vent Oil Control Rings

2305-4155 383 Small Block Chevy FX Series -21cc Dish Top SBC 23 Degree Forged Piston Set 4.155 inch bore Pin Dia.: 0.927" Comp Height: 1.425" 1.2-1.2-3MM The price of this option407 Small Block Chevy, FX, Comp Height: 1. 425, 21cc Dish Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 750", ROD: 5. 7, Approx Comp Ratio: 58cc 10. 49, 64cc 9. 88, 70cc 9. 34 *