more than that and it would have been more cost effective and better to replace the whole set
It can be done after the fact but pin fitting the pistons twice adds on quite a bit more labor
It is very common to order a single piston to replace an obviously damaged piston only to find out you need a few more
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
2306-4060 383 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.060 inch bore Pin Dia.: 0.927" Comp Height: 1.425" Stroke 3.480" more than that and it388 Small Block Chevy, FX, Comp Height: 1. 425, 28cc Dish Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 750", ROD: 5. 7, Approx Comp Ratio: 58cc 9. 41, 64cc 8. 91, 70cc 8. 46 *