Application. The Ford Racing X303 Performance Camshaft is designed for use in the 1985-1995 5.0L V8 Mustangs with 1.60 rockers.
Technical Notes. Ford Racing recommends the use of a Hi-Stall torque converter for Mustangs equipped with automatic transmissions. Valve clearance should be checked, as it may require piston modification for piston-to-valve clearance.