2406-4000 383 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.000 inch bore Pin Dia.: 0.927" Comp Height: 1.125" Stroke 3.250" 1) Single SX series replacement

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

including potentially having to re-balance the rotating assembly

bushed connecting rods are worn or in bad shape you might also consider this option to make them like new again by honing them from the stock

340 Small Block Chevy

Single Piston Replacement Pro Pip: Do yourself a favor and inspect all your pistons and cylinders carefully before making the decision to buy single replacements

2406-4000 383 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.000 inch bore Pin Dia.: 0.927" Comp Height: 1.125" Stroke 3.250" 1) Single SX series replacement377 Small Block Chevy, FX, Comp Height: 1. 125, 28cc Dish Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 750", ROD: 6, Approx Comp Ratio: 58cc 9. 2, 64cc 8. 7, 70cc 8. 27 *