2300-4030 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.425" Piston Series Option:FX-2 2618 Alloy Some Boost or NOS 6

Some Boost or NOS 6 CYLINDER SET

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-13

Please specify the correct part # of the ring set you need a replacement for in the note section of the checkout page

2300-4030 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.425" Piston Series Option:FX-2 2618 Alloy Some Boost or NOS 6383 Small Block Chevy, FX, Comp Height: 1. 425, 5cc Flat 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 12. 01, 64cc 11. 14, 70cc 10. 41 *