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Technical Articles for Part Number CCA-K54-444-11
COMP Cams XFI XE-R Cam and Lifter Kits
Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 273/279, Lift .581/.588, Chevy, Kit
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K54-444-11
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K54-444-11
UPC:
036584199878
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
2,000-7,000
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
High RPM street/strip with XE-R lobe designs. These are the most aggressive lobes for all out applications.
Intake Duration at 050 inch Lift:
224
Exhaust Duration at 050 inch Lift:
230
Duration at 050 inch Lift:
224 int./230 exh.
Advertised Intake Duration:
273
Advertised Exhaust Duration:
279
Advertised Duration:
273 int./279 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.581 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.588 in.
Valve Lift with Factory Rocker Arm Ratio:
0.581 int./0.588 exh.
Lobe Separation (degrees):
114
Camshaft Gear Attachment:
3-bolt
Grind Number:
XER273HR
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 XE-R Cam and Lifter Kits
COMP Cams XFI XE-R cam and lifter kits offer extreme fuel injection and extreme energy. Their aggressive lobe design is made for your "all-out" applications. Tuned for EFI, these XFI XE-R cam kits provide a terrific increase in performance and include matching lifters for the ultimate in performance. When you're running all-out, you need the most aggressive cam lobes--install COMP Cams XFI XE-R cam and lifter kits.
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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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