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Part number: 127550
Product Details
Comp Cams 127550 Stage 2 Blower XFI SPR Camshaft Hydraulic Roller
Products specifications
Advertised Duration 272 int./287 exh.
Advertised Exhaust Duration 287
Advertised Intake Duration 272
Basic Operating RPM Range 2,000-6,900
Cam Style Hydraulic roller follower
Computer-Controlled Compatible Yes
Duration at 050 inch Lift 237 int./248 exh.
Exhaust Duration at 050 inch Lift 248
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.560 in.
Grind Number XE272PH-13
Intake Duration at 050 inch Lift 237
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.547 in.
Lobe Separation (degrees) 113
Notes Fits 3V SOHC engines only. Requires a custom computer upgrade.
Quantity Sold as a pair.
Valve Lift with Factory Rocker Arm Ratio 0.547 in./0.560 exh. lift
Valve Springs Required Yes
Title 127550 CamShaft Set, F4.6 3V XE272PH- 13
Usage Street/Strip
Engine Make/Size Ford 4.6L 3V
RPM Range 1000-7000
Exh. Duration @ .050 in. (Deg) 248
Exh. Duration Advertised (Deg) 287
Exhaust Valve Lift (in.) 0.56
Int. Duration @ .050 in. (Deg) 237
Int. Duration Advertised (Deg) 272
Intake Valve Lift (in.) 0.547
Lifter Type Hydraulic Roller

SOHC - XFI SPR (SPRING AND PHASER MODS REQUIRED) Blower: Big power gains in mid to upper rpm range for bolt-on blowers with high boost. Rough idle, solid power gains above 4900 rpm, requires spring and phaser upgrade. Custom tuning required. Best with 3.90+ gears and 3000+ stall.

  • Requires part #26125-24 high load valve springs and either 710-24 steel retainers or 702-24 titanium retainers
  • Requires part #5449 cam phaser limiter kit
  • 272/287 Advertised Duration, 237/248 Duration @ .050 inch, .547 inch/.560 inch Lift, 113 Lobe Separation
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