In recent dyno tests on a Hemi engine using COMP’s #26918 beehive valve springs and upgraded exhaust, the XFI 260 netted 20 additional ft pounds of torque in lower rpm ranges with a peak of 31 additional hp. The XE 268 camshaft added 14 ft lbs of torque at low rpm and 47 additional peak horsepower. The amazing COMP Cams® XFI 273 camshaft yielded it’s most significant horsepower increases over 4500 rpm generating 61 more horsepower than the stock Hemi 5.7-liter engine

Comp Cams XFI™, 260H-13 Hemi Camshaft
- Stage I - Hydraulic Roller
• 1000-5500 RPM Operating Range
• Works Well With Stock Computer
• Exellent Torque throughout RPM Range
• Noticeable Idle

Comp Cams XFI™, 268H-13 Hemi Camshaft
- Stage II - Hydraulic Roller
• 1500-5800 RPM Operating Range
• Works Well With Stock Computer
• Very Strong MID-RANGE
• Noticeable Idle

Comp Cams XFI™, 273H-13 Hemi Camshaft
- Stage III - Hydraulic Roller
• 2000-6200 RPM Operating Range
• Needs Extended Rev Limeter
• Requires Improved Exhaust System
• Strong Power over 2500 RPM Range
• VERY Noticeable Idle

COMP Cams® engineers have found that the pushrod is one of the most important members of the valve train and certainly the most taken for granted. Prior to extensive research at COMP Cams®, it was thought that the pushrod only had to be strong enough not to fail, bend or burn up at the ends. Now our engineers have learned that the frequency of the pushrod must match that of all the rest of the parts in the valve train, as well as the rpm at which the engine will be run. Today’s engines demand the highest quality components at every step and COMP Cams® Hi-Tech™ Pushrods fill that requirement.

The one-piece design from .080” wall seamless chromemoly tubing ensures the ultimate in strength and durability. The ends are precision formed, yielding added thickness in the critical tip area for strength, while maintaining constant wall thickness and concentricity. High-Tech pushrods are heat-treated ensuring compatibility for maximum strength.

COMP Cams High Tech Pushrods
• Set of 16 High Tech Pushrods: Featuring 5/16 in. Dia., 0.080 in. Thickness, 6.600/ 7.850 in. Length

When it comes to valve springs and titanium retainers, there is no better choice. COMP CAMS design engineers took the engines rpm capability, lightweight valve train, durability and other unique features, and designed the ultimate HEMI valve springs.

COMP CAMS BEEHIVE™ VALVE SPRINGS springs are made from a high tensile, super clean, chrome silicone material, the retainers are titanium, . In fact, the single beehive shaped spring uses the same manufacturing process for either their low-pressure street spring or their limited street and race spring. The springs are designed to work with cams up to 0.660" lift, and fit stock pockets without any machine work. These springs and retainers are a perfect compliment for the EXTREME Energy Camshafts.

COMP Cams Beehive™ Spring Kit
• 16 Beehive™ valve springs.
• Daily street use.
• Spring pressure: Seat: 1.420'@ 76lbs
• nose: 0.910'@244lbs
• coil bind: 0.850'
• No machine work required

COMP Cams Titanium Valve Spring Retainers
• Set of 16 Titanium Valve Spring Retainers

COMP Cams Steel Valve Spring Retainers
• Set of 16 Steel Valve Spring Retainers