2308-4125 383 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 4.125 inch bore Pin Dia.: 0.927" Comp Height: 1.425" Piston Ring Kit Option:Pistons - Pins - Locs With DSS Racing Rings in a Kit 5/64 5/64 3/16 Moly Ring

5/64 5/64 3/16 Moly Ring Set for Mild Performance Applications

Obviously custom bore size pistons are non-returnable

355 Small Block Chevy

0 mm Ductile Moly Ring Set for Moderate to High Horsepower Applications

2308-4125 383 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 4.125 inch bore Pin Dia.: 0.927" Comp Height: 1.425" Piston Ring Kit Option:Pistons - Pins - Locs With DSS Racing Rings in a Kit 5/64 5/64 3/16 Moly Ring401 Small Block Chevy, FX, Comp Height: 1. 425, +4cc Dome 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 14. 09, 64cc 12. 93, 70cc 11. 99 *