Ford Racing M-6250-E303 Camshaft Hydraulic Roller Tappet For Small Block Windsor

Description

Ford Racing M-6250-E303 Camshaft Hydraulic Roller Tappet For Small Block Windsor
The legendary E303 cam developed by Ford Performance for the 5.0L Fox-body Mustang. This cam provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission. Works well with carburetors or 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
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
Requires upgraded valve springs
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
Also fits 1994-97 351W with factory roller cam when used with mass air EFI
Stock 5.0L HO cam advertised specs are 266°/266° duration, 0.444"/0.444" lift
Higher stall torque converter recommended for automatic transmission
Cam Style:
Hydraulic roller tappet
Basic Operating RPM Range:
2,500-5,500
Intake Duration at 050 inch Lift:
220
Exhaust Duration at 050 inch Lift:
220
Duration at 050 inch Lift:
220 int./220 exh.
Advertised Intake Duration:
282
Advertised Exhaust Duration:
282
Advertised Duration:
282 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.498 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.498 in.
Valve Lift with Factory Rocker Arm Ratio:
0.498 int./0.498 exh.
Lobe Separation (degrees):
110
Computer-Controlled Compatible:
Yes
Grind Number:
M-6250-E303
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Will not work with Speed Density applications. A modified computer chip may be required.