Ford Racing M-6250-F303 Hydraulic Roller Camshaft for Small Block - V8

The legendary F303 cam developed by Ford Performance for the 5.0L Fox-body Mustang delivers a powerful combination of performance gains and drivability. This hydraulic roller tappet camshaft features an advertised duration of 288/288 degrees and valve lift of .512/.512 inches, with 226/226 degrees duration at .050 inch lift. The F303 provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission.

Performance Characteristics:

• Basic operating RPM range of 3,500-6,500
• Good torque and power up to 6200 RPM
• Works well in supercharged applications
• Compatible with manual transmission, automatic transmission, carburetor, and mass air fuel injection
• Used in Ford Racing's 347SR Blue Oval circle track engines

Compatibility:

• Fits 1985 and later 302 roller cam engines
• Will also fit 1963-1984 non-roller cam 289-302 blocks when used with hydraulic roller lifters M-6500-T58
• Also fits 1994-97 351W with factory roller cam when used with mass air EFI
• Will also fit 1969-1993 non-roller cam 351W blocks when used with hydraulic roller lifters M-6500-T58

Important Installation Notes:

• Requires upgraded valve springs - for stock cylinder head applications use M-6513-A50 valve springs installed at 1.820 inches, for aftermarket cylinder heads M-6513-BH recommended
• Valve spring requirements: 120 lbs valve seat pressure minimum, 295 lbs open
• Hi-stall torque converter recommended for automatic transmission
• May require piston modification for piston-to-valve clearance - valve clearance should be checked
• On EFI engines, performance camshafts work only with mass air induction systems - will not work with Explorer EEC-V EFI
• May require longer pushrods

The Ford Racing M-6250-F303 camshaft is sold individually and represents decades of Ford Performance engineering expertise for small block V8 engines.