Ford Performance B303 Camshaft (M-6250-B303)

CAMSHAFT, HYDRAULIC, FORD PERFORMANCE B303, M-6250-B303, SPECS, ADVERTISED DURATION 284 DEGREE INTAKE / 284 DEGREE EXHAUST, LIFT .0480 INCH INTAKE / 0.480 INCH EXHAUST, 112 DEGREE LOBE SEPARATION, BASIC RPM RANGE 3000 TO 6000, 302 FIRING ORDER, SEE ONLINE FOR MORE DETAILS

If power, performance and aggressive exhaust lope are what you are looking for in your pushrod 5.0L engine, picking up one of these B303 camshafts from Ford Performance might just the ticket. This E303 camshaft features the Ford Performance part number M-6250-B303 and is designed for use in 1985 and later roller cam blocks. It is designed to increase horsepower and torque thru the RPM range and is sure to give you the exhaust note you are looking for. So, if you are looking to replace your factory unit or are looking to build a pushrod engine look at picking up one of these camshafts from NPD today!

Manufacture Note:
The legendary B303 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.

Camshaft Specs:
-Lobe Separation (112 Degree)
-RPM Range (3,000 to 6,000 rpm)
-Intake Duration (284)
-Intake Duration @ 0.050 (224)
-Intake Valve Lift (.480)
-Exhaust Duration (284)
-Exhaust Duration @ 0.050 (224)
-Exhaust Valve Lift (.480)
-Hydraulic Roller Style

Camshaft Features and Options:
-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

Installation Note:

On EFI engines, performance camshafts work only with mass air induction systems. Will not work with Explorer EEC-V EFI. 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. Hi-Stall torque converter recommended for automatic trans.

Camshaft intake and exhaust valve events are measured at 0.050" tappet lift. The duration figures in the shaded area are taken at 0.050" tappet lift. This is useful to check the cam with a degree wheel during installation. The solid color is advertised duration. For comparison purposes, add intake and exhaust lobe centers and divide by 2 to calculate "camshaft centerline" specification for Ford Performance camshafts.

May require piston modification for piston-to-valve clearance. Valve clearance should be checked.

It is important to note that all Ford Performance Camshafts come with a Camshaft dowel pin designed for EFI applications, which is shorter the short style. For non-EFI engines or those needing a longer dowel pin, NPD part number 378189-S is recommended. This ensures proper installation and compatibility with engines requiring a fuel pump eccentric.

Emission Note:

This part is intended as a replacement part for use only in the application(s) identified in the product description. Installation of this part in a vehicle for which it is not intended may violate U.S. and Canadian laws and regulations related to motor vehicle emissions.

Ford Mustang Years:

1985 (85), 1986 (86), 1987 (87), 1988 (88), 1989 (89), 1990 (90), 1991 (91), 1992 (92), 1993 (93), 1994 (94), 1995 (95)

NPD Part Number : M-6250-50B
Manufacturer Reference #'s: M-6250-B303