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
including potentially having to re-balance the rotating assembly
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
You will be required to do whatever it takes to match your other pistons weight
This part # is for a replacement single cylinder ring set
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" bushed connecting rods are worn377 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 *