Comp Cams 54-446-11 GM LS Gen III/IV XFI XE-R Hydraulic Roller Camshaft XER281HR

This Comp Cams 54-446-11 XFI XE-R Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Comp designed this cam specifically for street/strip race only applications with Cathedral Port Cylinder Heads, and it’s designed for standard displacement in LS6 and LS1. A 10.0:1+ compression ratio and a 2800+ stall speed torque converter are highly recommended.

Comp Cams 54-446-11 Gen III/IV LS XFI XE-R 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: 2400 to 7200
• Valve Lift Intake: .595
• Valve Lift Exhaust: .598
• Intake Duration: 281
• Exhaust Duration: 283
• Intake Duration at .050”: 232
• Exhaust Duration at .050”: 234
• 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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