Comp Cams 54-451-11 GM LS Gen III/IV XFI Xtreme Truck Hydraulic Roller Camshaft G3 XFI 261 HR15

This Comp Cams 54-451-11 XFI Xtreme Truck 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 features significant gains in mid & upper RPM range. Exhaust upgrade needed for best performance. A 10.0:1+ compression ratio and a 1500+ stall speed torque converter are highly recommended.

Comp Cams 54-451-11 Gen III/IV LS XFI Xtreme Truck 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: 1000 to 5700
• Valve Lift Intake: .554
• Valve Lift Exhaust: .558
• Intake Duration: 261
• Exhaust Duration: 265
• Intake Duration at .050”: 208
• Exhaust Duration at .050”: 212
• Lobe Separation: 115
• 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.

Comp Cams - The Absolute Leader In Valve Train Technology!