Ford 4.6L/5.4L modular 3-valve engines found in 2005 and newer Mustangs are all the rage. So the question on everyone's mind becomes, "How can I further improve the performance of these powerful engines?" COMP Cams XFI VSR Modular 3V (Valve Springs Required) Camshafts deliver a great power improvement over stock levels. These cams are the next step up from the COMP Cams NSR (No Springs Required) Cams and represent a major upgrade in power production. When compared to the NSR, stock valve spring compatible cam series, the VSR cams offer a substantial power gain in the higher rpm ranges. To achieve this, a high-lift design that requires a COMP Cams Beehive Valve Spring upgrade was created to maximize power within the limits of the OEM unmodified cam phasers. These new VSR camshafts are available for both naturally aspirated and supercharged engines, with two levels available in each series; one designed for maximizing mid-range power and torque, while the other maximizes top end horsepower. The performance secret behind these camshafts is in the extensive dyno testing that allowed them to determine precise cam timing events. Combining these optimized timing events with a high-lift lobe design offers substantial improvements in both power and throttle response. Designed to work flawlessly with the factory VCT, which is programmed to retard the cam timing above 4500 rpm, the new COMP Cams XFI VSR Ford 4.6L/5.4L Modular 3V Cams optimize both mid and high rpm performance.

More From This Category

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 213/213, Valve Lift 0.331/0.331

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 213/213, Valve Lift 0.331/0.331

$430.77

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Flat Advertised Duration 250 / 260

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Flat Advertised Duration 250 / 260

$1,196.96

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 262/280, Lift .462/.480, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 262/280, Lift .462/.480, For Chevrolet Small Block, Kit

$893.54

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 258/266, Lift .533/.544, For Ford 5.0L, Each

COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 258/266, Lift .533/.544, For Ford 5.0L, Each

$1,115.45

COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Advertised Duration 268

COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Advertised Duration 268

$1,053.22

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .660/.630, For Chevrolet Small Block, Each

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .660/.630, For Chevrolet Small Block, Each

$1,108.73