Valley-Vans

Engine Engine Components See Manufacturer’s Catalog For More Applications • Jeep ® is a registered trademark of FCA US LLC. 858 C56 Camshaft Series Designations High Energy ™ Xtreme Energy ™ LSL Hydraulic Rollers For LS1 Magnum Xtreme Energy™ Thumpr™ Benefits: • Work well with mainly stock components (rockers, manifolds, heads, compression, converters, gears, etc.) • Good blend of efficiency and performance • Perfect choice for performance rebuilds Important Considerations: • Not the optimum choice for racing applications • Great choice for engines where performance upgrades are not planned The LSL Series has been designed with enhanced characteristics from our latest professional drag racing pro les. These have excellent ramp quickness but are designed in a way to improve stability over other designs with such short seat timing. The increased lift works well with the latest Gen III and LS cylinder head port designs by providing excellent area above 1/2” valve lift. Benefits: • Great high RPM power • Easy on valve train parts • Can be used with mild ratio rocker arms and traditional performance valve springs Important Considerations: • Really needs converter and gear changes • These like compression (9.5:1 and up) • Larger Magnums are a little lazy at low RPM Benefits: • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve • More vacuum allows a step up in duration for greater performance • Best seller; Excellent performance in street carbureted applications Important Considerations: • Work best with COMP Cams® roller rockers and matched valve springs • Require other performance parts (intake manifold, headers, etc.) for best performance Benefits: • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note Important Considerations: • Minimal engine vacuum – requires mods for any vacuum accessories such as power brakes • Designed for use only with valve train upgrades, including COMP Cams ® Valve Springs and roller rockers • Works best with looser converters, more rear end gear and other performance engine modifications Xtreme 4x4™ Benefits: • Improved throttle response and low and mid-range RPM horsepower • Designed for use with common restrictive factory exhaust system including OEM exhaust manifolds • Feature latest camshaft technology in lobe design Important Considerations: • Both towing and off-roading camshaft profiles available • Features aggressive lobe profiles with short duration specs • Excellent for Jeep ® and off-road vehicle use Nostalgia Plus™ Factory Muscle™ Nitrous HP™ Computer Controlled Benefits: • Specifically designed to capture the essence of the original 1960s muscle car style • Delivers improved muscle car sound and horsepower • Newer lobe designs deliver increased throttle response and torque Important Considerations: • Combines famous factory cam performance with modern technology • Excellent sound improvement through camshaft specifications (with similar vacuum characteristics to its muscle car era counterparts) Benefits: • Reproduction of factory original muscle car camshaft • Produce more torque and horsepower than original factory camshaft • Maintain efficiency and drivability of the engine Important Considerations: • New computer controlled aided design avoids previous factory design compromises • Tailored to work with high compression engine of the 1960s and 70s • Best choice for “era-correct” engine rebuilds Benefits: • Wider lobe separation and added exhaust duration from base XE series help shift the power to higher RPM where it can be used in nitrous applications • Early exhaust opening helps scavenge the extra spent gasses out from nitrous or forced induction • Better time slips for nitrous passes at the strip Important Considerations: • Slight sacrifice of some torque and responsiveness to the base XE family for improved performance with nitrous oxide • Works best with COMP Cams ® roller rockers and matched valve springs • The big question is which time slip matters more to you – normally aspirated or N2O-assisted Benefits: • Replacement camshafts for OEM EFI engines • Wide variety of camshaft sizes available for significant power gains • Available for electronic fuel injected, throttle body injected and tuned port injected engines Important Considerations: • Available for both stock and modified computer systems Pure Energy ™ Benefits: • 50-State legal emissions for carbureted engines • Mild performance gains over the factory camshafts Important Considerations: • Work with factory stock components • Great daily driver style camshafts 50 STATE LEGAL FSL™ SERIES CAMSHAFTS FOR LS Introducing the first performance aftermarket camshaft in almost 20 years to pass the stringent California Air Resources Board (CARB) Executive Order (E.O.) process for a domestic engine. FSL™ Cams for the Gen III/IV three-bolt and LS2/LS3 single-bolt applications can produce a 30 to 70 HP increase in peak power while the version for Gen IV single-bolt cams works with factory Variable Valve Timing and features unique profiles on switching and non-switching cylinders for compatibility with Active Fuel Management, while providing the proven 30+ HP improvement typical of smaller COMP Cams ® camshafts in LS applications. All of this comes without the risk of non-compliance with emissions regulations. • CARB E.O. #D-279-12 • Drop-in convenience with no valve spring changes required on any application • No computer reprogramming necessary to work with factory VVT and AFM systems of Gen IV single-bolt version • Improves performance by 30 to 70 HP, depending on application