2106-4165 350 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.165 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Engine Size 327 one second ring and a

one second ring and a 3-piece oil ring set

Do not indicate the piston skirt diameter

302 Small Block Chevy

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

2106-4165 350 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.165 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Engine Size 327 one second ring and a379 Small Block Chevy, FX, Comp Height: 1. 26, 28cc Dish Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 480", ROD: 6, Approx Comp Ratio: 58cc 9. 18, 64cc 8. 69, 70cc 8. 27 *