COMP Cams Valve Springs Required XFI Stage 2 Camshaft Set for Naturally Aspirated 2005-2010 4.6L 3V Mustang GTs.For those hardcore enthusiasts looking to achieve substantial horsepower and torque increases and who aren't intimidated by having to upgrade their valve springs, COMP Cams offers a full line-up of XFI VSR (Valve Springs Required) Cam Sets for Ford 4.6L/5.4L Modular 3V Engines that offer as much as 40 HP increases over stock levels.
Available for both naturally aspirated and supercharged engines, these cam sets are also available in two stages. Designed to work with the Ford variable cam timing (VCT) system, these camshaft sets are direct replacements that bolt in without engine modification except the valve spring upgrade. By working with the VCT, which is programmed to retard the camshaft timing at peak power, COMP Cams XFI VSR Cam Sets for Ford 4.6L/5.4L Modular 3V Engines optimize both mid-range and high RPM performance.
-RPM Range 950-6400 (solid power gains above 4600 RPM)
-Duration: Intake 261/ Exhaust 278
-Duration @ .050" Lift: Intake 222/Exhaust 235
-Lobe separation (degrees) 115.5
-Intake centerline (degrees) 101
-Valve Lash Hydraulic
-Valve Lift: Intake 0.49/ Exhaust 0.48"
Product ReviewsWrite a review
Will the stock bottom end hold to these cams or is a bottom end up grade necessary ?
Which set of Springs is recommended to use with the COMP stage 2 cam shafts? (.50, .55, or .65)
Is there a tune needed for NA in combination with JBA longtubes? How many miles does the springs work correctly?
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