2325-4030 383 Small Block Chevy FX Series -21cc Dish Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Engine Size 383 Approx Comp Ratio: 58cc-13

Approx Comp Ratio: 58cc-13

1) Single SX series replacement piston with wrist pin and pin locs

409 Small Block Chevy

best engine building practices dictate that pistons should be replaced in matched sets

316 Small Block Chevy

2325-4030 383 Small Block Chevy FX Series -21cc Dish Top SBC 23 Degree Forged Piston Set 4.030 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Engine Size 383 Approx Comp Ratio: 58cc-13388 Small Block Chevy, FX, Comp Height: 1. 4, 21cc Dish 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 10. 1, 64cc 9. 51, 70cc 9 *