2320-4000 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.000 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Piston Series Option:FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs 397 Small Block Chevy

397 Small Block Chevy

Obviously custom bore size pistons are non-returnable

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

The extra $80

The price of this option assumes that it is done at the time of order

2320-4000 383 Small Block Chevy FX Series -5cc Flat Top SBC 23 Degree Forged Piston Set 4.000 inch bore Pin Dia.: 0.927" Comp Height: 1.4" Piston Series Option:FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs 397 Small Block Chevy382 Small Block Chevy, FX, Comp Height: 1. 4, 5cc Flat Top , PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 800", ROD: 5. 7, Approx Comp Ratio: 58cc 11. 98, 64cc 11. 14, 70cc 10. 4 *