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COMP Cams XFI Xtreme Truck Camshafts 54-451-11

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Camshaft, Hydraulic Roller Tappet, Advertised Duration 261/265, Lift .554/.558, Chevy, Small Block, LS

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Brand: COMP Cams
Manufacturer's Part Number: 54-451-11
Part Type: Camshafts
Summit Racing Part Number: CCA-54-451-11

UPC: 036584121299
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,000-5,700
Intake Duration at 050 inch Lift: 208
Exhaust Duration at 050 inch Lift: 212
Duration at 050 inch Lift: 208 int./212 exh.
Advertised Intake Duration: 261
Advertised Exhaust Duration: 265
Advertised Duration: 261 int./265 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.554 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.558 in.
Valve Lift with Factory Rocker Arm Ratio: 0.554 int./0.558 exh.
Lobe Separation (degrees): 115
Camshaft Gear Attachment: 3-bolt
Computer-Controlled Compatible: Yes
Grind Number: G3XFI261HR15
Valve Springs Required: Yes
Quantity: Sold individually.
Notes: Requires custom computer tuning. Cannot use stock springs. Exhaust upgrade is recommended.
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Release the incredible horsepower and torque hidden inside your vehicle's engine with COMP Cams XFI Xtreme truck camshafts. Available in three different profiles (XFI 260, 261, and 266), these cams utilize advanced camshaft technology used in fuel injected engines to deliver improved throttle response and better mid and upper rpm power. COMP Cams XFI truck camshafts (for the GM Gen III engines) are compatible with the factory computer systems and wiring, but deliver the best performance when used with upgraded COMP Cams valvetrain equipment, including valve springs, retainers, and locks. Computer tuning is required; use a Fast Flash Cam Tuner Programmer for best results.

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1 Customer Reviews for COMP Cams 54-451-11 - COMP Cams XFI Xtreme Truck Camshafts

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Works well but noisey

Summit RacingSummit Racing Verified Purchase

This can works really well in my 05 1500 4x4 with a 5.3. It idles like stock mostly but is really torquey throughout the rpm band. It is really noisey though. You can hear the valves literally slam shut from the aggressive ramp profile.

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Reviewer: CLINT from IA

Date: June 24, 2014

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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