The G303 cam was developed by Ford Racing to provide the best balance of drivability and power for the 351W engine. This Fox Body G cam provides a noticeable power improvement and maintains great driveability. Works well with a manual or automatic transmission, carburetors and mass air fuel injection.
Fits 1985 and later 302 roller cam blocks
Will also fit 1963 – 1984 non-roller cam 289-302 blocks when used with hydraulic roller lifters M-6500-T58
Will also fit 1994 –1997 351W blocks with factory roller cam
Will also fit 1969 – 1993 non-roller cam 351W blocks when used with hydraulic roller lifters M-6500-T58
Cam Specs; Intake: .498” lift, 226 duration at .050”. Exhaust: .510’ lift, 228 duration at .050”
Requires upgraded valve springs. For stock cylinder head applications use M-6513-A50 valve springs installed at 1.820”. For aftermarket cylinder heads M-6513-BH recommended.
Valve spring requirements: 120 lbs valve seat pressure minimum 295 lbs open.
On EFI engines, performance camshafts work only with mass air induction systems. Will not work with Explorer EEC-V EFI or speed density EFI systems.
Stock 5.0L HO cam advertised specs are 266°/266° duration, 0.444”/0.444” lift.
Higher stall torque converter recommended for automatic transmission