2080-3766 305 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 3.766 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Stroke 3.480" Approx Comp Ratio: 58cc-14

Approx Comp Ratio: 58cc-14

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

We need the engine block cylinder bore size

0 mm Ductile Moly Ring Set for Moderate to High Horsepower Applications

including potentially having to re-balance the rotating assembly

2080-3766 305 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 3.766 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Stroke 3.480" Approx Comp Ratio: 58cc-14312 Small Block Chevy, FX, Comp Height: 1. 26, 5cc Flat Top , PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 500", ROD: 6, Approx Comp Ratio: 58cc 10. 09, 64cc 9. 37, 70cc 8. 77 *