6310-3910 318 Small Block Mopar FX Series -3cc Flat Top Small Block Mopar Forged Piston Set 3.910 inch bore Pin Dia.: 0.984" Comp Height: 1.802" Small Block Ford 289 - 302 22 NOTE: Most FE‑series OEM

22 NOTE: Most FE‑series OEM connecting rods require narrowing at the pin end to achieve proper side clearance within the 2

33 Effective June 15th 2026

-7cc Dish Top No Notch

449 FE Ford

281 Ford Modular

6310-3910 318 Small Block Mopar FX Series -3cc Flat Top Small Block Mopar Forged Piston Set 3.910 inch bore Pin Dia.: 0.984" Comp Height: 1.802" Small Block Ford 289 - 302 22 NOTE: Most FE‑series OEM318 Small Block Mopar, FX, Comp Height: 1. 802, 3cc Flat Top , PIN: . 984", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 310", ROD: 6. 123, Approx Comp Ratio: 62cc 9. 93, 64cc 9. 7, 72cc 8. 86 Effective June 15th 2026, These Sm These Block Mopar ring grooves have been updated to the new specifications of 1. 2 1. 2 3mm. Parts manufactured prior to this date feature ring grooves with dimensions of 1 16 1 16 3 16.