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Technical Articles for Part Number CCA-K54-428-11
COMP Cams XFI RPM Cam and Lifter Kits
Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 281/283, Lift .571/.573, Chevy, Kit
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K54-428-11
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K54-428-11
UPC:
036584199861
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
2,200-7,200
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
High RPM street/strip camshaft for use with FAST LSX intake. Requires programmer.
Intake Duration at 050 inch Lift:
228
Exhaust Duration at 050 inch Lift:
230
Duration at 050 inch Lift:
228 int./230 exh.
Advertised Intake Duration:
281
Advertised Exhaust Duration:
283
Advertised Duration:
281 int./283 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.571 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.573 in.
Valve Lift with Factory Rocker Arm Ratio:
0.571 int./0.573 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
3-bolt
Grind Number:
XR281HR
Computer-Controlled Compatible:
Yes
Lifters Included:
Yes
Lifter Style:
Hydraulic roller
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.055 in.
Retainers Included:
Yes
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
No
Assembly Lubricant Included:
Yes
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
COMP Cams XFI RPM Cam and Lifter Kits
COMP Cams XFI RPM cam and lifter kits are designed to provide an excellent increase in your ride's performance. Featuring the newest and quickest lobe profiles, these kits are tuned for use in EFI applications, where the extra airflow signal through a carburetor is not required. COMP Cams XFI RPM kits include matching lifters for the ultimate in performance. These kits are great for use with aftermarket cylinder heads.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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