Complete 40-piece standard-size piston-ring kit for the 4.7 L (289 cid) Ford small-block in the 1965 Mustang. Replaces OE ring set C3AZ-6148-F.
Restore factory compression and stop oil consumption in your classic 1965 Mustang with this premium standard-size piston-ring set. Precision-ground 5/64 × 5/64 × 3/16 rings seal perfectly on the 4.000 in bore of the legendary 289 V-8. Grey-iron tops with phosphate coating seat quickly, while the three-piece flex-vent oil control rings keep blow-by in check for thousands of trouble-free miles. Supplied as a complete 40-piece kit (eight cylinders) and backed by Motoforge USA’s OEM-grade quality, it’s the smart, cost-effective way to breathe new life into your small-block rebuild.