The FOX 1.800-inch engine valve is a single replacement valve with a 0.504-inch inner diameter and a 0.010-inch wall thickness, designed for routine valve service and rebuilds. The clear dimensional callouts make it straightforward to verify fit with valve seats and guides during head reconditioning. Sold individually to help shops and DIYers maintain correct inventory and select the proper valve for repairs.
Fox Valve 1.800 OD x 0.504 ID x 0.010 TH