2028-4030 302 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.8" 1.5-1.5-4MM We then pin fit the

We then pin fit the piston pin bores accordingly for the

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

Because the singles you are purchasing were not made at the same time your original pistons were made there will be variations that could effect their weight

Approx Comp Ratio: 58cc-11

2028-4030 302 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.8" 1.5-1.5-4MM We then pin fit the306 Small Block Chevy, FX, Comp Height: 1. 8, +4cc Dome Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 000", ROD: 5. 7, Approx Comp Ratio: 58cc 11. 04, 64cc 10. 17, 70cc 9. 43 *