2006 Ford Racing Performance Parts Catalog - Rocket City Mustang ...

CAMSHAFTS AND LIFTERS
SMALL BLOCK V-8 HYDRAULIC ROLLER TAPPET CAMSHAFTS
(See pages 223-226 for installation tips.)
NOTE: Roller and flat tappet camshafts are NOT interchangeable.
Unless otherwise shown, 302 usage includes 302 BOSS/302
Ford Racing. 351C usage includes 351C BOSS/351C
Ford Racing. 351W includes 351 Ford Racing.
Roller Tappet Camshaft
USAGE RECOMMENDATIONS AND PEAK RPM DURATION ➅ VALVE LIFT
PART NUMBER ENGINE DESCRIPTION PERFORMANCE CHARACTERISTICS ➂ TORQUE BHP. INT. EXH. INT. EXH.
M-6250-E303 1985-95 Hydraulic Good idle quality. Excellent low- and 2500 5500 282° 282° 0.498" 0.498"
➂ 302 with Roller Roller mid-range power. Power through 6000 RPM.
Tappet Cam Tappet Emissions legal with 5-speed manual trans 220° 220°
➀➁
(E.O. #D-225-16). Works well with automatic
E.O. #D-225-16
transmission. Great for superchargers.
M-6250-F303* 1985-95 Hydraulic Slightly rougher idle than E303. More 2800 6000 288° 288° 0.512" 0.512"
➂➃ 302 with Roller Roller mid-range and top-end power than E303.
Tappet Cam
➀➁
Tappet Great for superchargers. 5-speed manual
transmission recommended.
226° 226°
M-6250-B303* 1985-95 Hydraulic Fair idle quality. Good low-end torque. 3300 5100 284° 284° 0.480" 0.480"
➂ 302 with Roller Roller Significant top-end horsepower above
Tappet Cam
➀➁
Tappet 4000 RPM. 5-speed manual transmission
recommended.
224° 224°
M-6250-X303* 1985-95 Hydraulic Ultra high-performance camshaft. 3500 6200 286° 286° 0.542" 0.542"
➂➃ 302 with Roller Roller Fair idle quality. Big time torque and
Tappet Cam
➀➁
Tappet horsepower maker—up to 6200 RPM.
5-speed manual transmission recommended.
224° 224°
M-6250-Z303* 1985-95 Hydraulic “CamZilla” the biggest and baddest camshaft 3500 6500 290° 290° 0.552" 0.552"
➂➃➄ 302 with Roller Roller Ford Racing offers. Fair idle quality. Big time
Tappet Cam Tappet torque and horsepower maker—up to 6500 RPM. 228° 228°
➀➁
5-speed manual transmission recommended.
NOTES: ➀ On EFI engines, performance camshafts work only with mass air induction systems. Will not work with Explorer EEC-V EFI. See page 114.
➁ Also fits 1994-95 351W with factory roller cam when used with mass air EFI.
➂ Stock 5.0L HO cam advertised specs are 266°/266° duration, 0.444"/0.444" lift.
➃ May require piston modification for piston-to-valve clearance. Valve clearance should be checked.
➄ Requires valve spring pressure 120 lbs. close 340 psi open and may require longer pushrods.
➅ Duration figures in shaded area at 0.050" lobe lift.
ENGINE
COMPONENTS
BIG BLOCK V-8 CAMSHAFT 385 SERIES
(429/460)
(See pages 223-226 for installation tips.)
NOTE: On EFI engines, performance camshafts work only
with mass air induction systems. See page 114.
USAGE RECOMMENDATIONS AND PEAK RPM DURATION ➁ VALVE LIFT
PART NUMBER ENGINE DESCRIPTION PERFORMANCE CHARACTERISTICS ➀ TORQUE BHP. INT. EXH. INT. EXH.
M-6250-A443* 429/460 Hydraulic Substantial horsepower increase at high RPM. 3000 5000 300° 310° 0.562" 0.588"
Wedge Flat Production cylinder heads require machining
Tappet of valve spring seats to prevent “coil bind”
with stock length valves.
234° 244°
M-6250-A460* 429/460 Hydraulic Increased horsepower and torque. 3250 4750 288° 292° 0.493" 0.502"
Wedge Flat
Tappet
Good all around performance.
Widely used in marine applications. 216° 220°
M-6250-C460* 429/460 Hydraulic Excellent torque and horsepower. 4750 6000 310° 320° .588" .614"
Wedge Flat
Tappet
Same as used in our 460 crate motor
M-6007-C460. 244° 254°
M-6250-A514* 514 Mechanical Includes roller tappets used in
➂ Roller M-6007-A514/B514/C514/D514
4750 6250 304° 308° .647" .647"
254° 258°
NOTES: ➀ Compared to standard production camshaft with production cylinder heads and intake manifold.
➁ Duration figures in shaded area at 0.050" lobe lift.
➂ Not compatible with roller cam bearings.
*Not legal for sale or use on pollution-controlled motor vehicles.
**Direct replacement part.
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