5060-4050 442 FE Ford FX Series -5cc Flat Top FE Ford Forged Piston Set 4.050 inch bore Pin Dia.: 0.99" Comp Height: 1.39" Piston Series Option:FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs 352 Chevy LS

352 Chevy LS

65 Effective June 15th 2026

428 Pontiac Early and Late

417 Chevy LS

438 FE Ford

5060-4050 442 FE Ford FX Series -5cc Flat Top FE Ford Forged Piston Set 4.050 inch bore Pin Dia.: 0.99" Comp Height: 1.39" Piston Series Option:FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs 352 Chevy LS425 FE Ford, FX, Comp Height: 1. 39, 5cc Flat Top , PIN: . 99", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 4. 125", ROD: 6. 7, Approx Comp Ratio: 65cc 12. 09, 72cc 11. 2, 76cc 10. 73 NOTE: Most FEseries OEM connecting rods require narrowing at the pin end to achieve proper side clearance within the 2. 5inch pin boss. Aftermarket rods are typic Thesey manufactured with a narrower profile and therefore do not require this