2106-4040 350 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.040 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Piston Ring Kit Option:Pistons - Pins - Locs With DSS Racing Rings in a Kit Do not indicate the piston

Do not indicate the piston skirt diameter

This part # is for a replacement single cylinder ring set

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

If your full floating

2106-4040 350 Small Block Chevy FX Series -28cc Dish Top SBC 23 Degree Forged Piston Set 4.040 inch bore Pin Dia.: 0.927" Comp Height: 1.26" Piston Ring Kit Option:Pistons - Pins - Locs With DSS Racing Rings in a Kit Do not indicate the piston357 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 8. 75, 64cc 8. 28, 70cc 7. 88 *