2320-4060 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.060 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Bore Size 3915 in 99363 mm 1/16" 1/16" 3/16" Ductile Moly

1/16" 1/16" 3/16" Ductile Moly Ring Set for Moderate to High Horsepower Applications

266 Chevy V6

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

388 Small Block Chevy

Approx Comp Ratio: 58cc-8

2320-4060 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.060 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Bore Size 3915 in 99363 mm 1/16" 1/16" 3/16" Ductile Moly394 Small Block Chevy, FX, Comp Height: 1. 4, 5cc Flat Top , PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 800", ROD: 5. 7, Approx Comp Ratio: 58cc 12. 3, 64cc 11. 41, 70cc 10. 68 *