The Ford 4.6L/5.4L Modular 3V Ford Mustang engine has become increasingly popular, so now the question is - how can we further improve the performance of it? COMP Cams® has built upon Ford’s technology with three new series of camshafts created specifically for these engines: NSR (No Springs Required), VSR (Valve Springs Required), and SPR (Springs and Phaser Mods Required). Each series of cams is available for both naturally aspirated and supercharged engines and is carefully matched with COMP Cams® components, including high performance valve springs, retainers and COMP’s latest offering for these engines – the Cam Phaser Limiter Plates. Don’t settle for stock; make your Ford Mustang stand out from the crowd.

XFI™ NSR (NO SPRINGS REQUIRED) FORD 4.6L/5.4L MODULAR 3V CAMS
The COMP Cams® XFI™ NSR (No Springs Required) Cam Sets for Ford 4.6L/5.4L Modular 3 Valve Engines are the first truly “drop-in installation” camshafts ever created for this popular application – striking the perfect balance of performance versus installation difficulty. Offered for both naturally aspirated and supercharger-equipped engines, these cam sets require no additional computer re-tuning; however testing has shown that mild tuning can result in power gains even greater than the normal 25 rear wheel horsepower. These camshafts are fully compatible with the factory variable cam timing (VCT) system and are designed to operate in the stock rpm range. The stage one cam set is designed to maximize mid-range power and torque, while stage two maximizes top end horsepower.

XFI™ VSR (VALVE SPRINGS REQUIRED) FORD 4.6L/5.4L MODULAR 3V CAMS
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 3 Valve 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 3 Valve Engines optimize both mid-range and high rpm performance.

XFI™ SPR (SPRING & PHASER MODS REQUIRED) FORD 4.6L/5.4L MODULAR 3V CAMS
The COMP Cams® XFI™ SPR (Springs and Phaser Mods Required) Camshafts are the best way to achieve the most horsepower and torque increases possible with the popular Ford 4.6L/5.4L Modular 3 Valve engines. This last group of cam sets is available for both naturally aspirated and supercharged engines, and each version is offered in three performance levels. Designed to work with a modified Ford variable cam timing (VCT) system, these camshafts are direct replacement components. Working with the required COMP Cams® Cam Phaser Limiter Kit (Part #5449; patent pending), these XFI™ SPR Cams optimize both low and high rpm performance. As noted by the COMP Cams® engineering staff during extensive dyno testing, these camshafts provided the biggest power and torque improvements of any cam series they’ve ever tested in the Ford Modular 3 Valve engine.