Description

This Comp Cams 54-428-11 XFI RPM HI-LIFT Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Comp designed this cam specifically for street/strip use with Cathedral Port Cylinder Heads, and it is best used with Fast LSX intake. A 10.0:1+ compression ratio and a 2600+ stall speed torque converter are highly recommended.

Comp Cams 54-428-11 Gen III/IV LS XFI RPM HI-LIFT Hydraulic Roller Camshaft Specs:

• For Gen III/IV LS engines from 1997 through Present
• For use with Cathedral Port Cylinder Heads
• 3-Bolt Camshaft Gear Attachment
• Basic RPM Range: 2200 to 7200
• Valve Lift Intake: .571
• Valve Lift Exhaust: .573
• Intake Duration: 281
• Exhaust Duration: 283
• Intake Duration at .050: 228
• Exhaust Duration at .050: 230
• Lobe Separation: 112
• Firing Order: 1-8-7-2-6-5-4-3
• Made in the USA

Notes: Stock (O.E.) valve springs can NOT be used. Requires custom programmer/tuning.

Comp Cams designed this hydraulic roller camshaft for high performance on the street and at the drag strip.

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