Comp Cams 51-224-4 Pontiac Xtreme Energy Hydraulic Flat Tappet Camshaft XE274H

This Comp Cams 51-224-4 Pontiac XE274H Xtreme Energy Hydraulic Flat Tappet Camshaft fits the 265-455 Pontiac engines from 1955-1981. Comp designed this cam for high performance street/strip use, and it features very strongmid-range power and a rough idle. A 9.0:1 or higher compression ratio, headers and a 2200+ stall speed torque converter are highly recommended.

Comp Cams 51-224-4 Pontiac XE274H Xtreme Energy Hydraulic Flat Tappet Camshaft Specs:

• For 265-455 cubic inch Pontiac engines from 1955-1981
• Stock (O.E.) valve springs can NOT be used.
• Basic RPM Range: 1800 to 6000
• Valve Lift Intake: .488
• Valve Lift Exhaust: .491
• Advertised Intake Duration: 274
• Advertised Exhaust Duration: 286
• Intake Duration at .050”: 230
• Exhaust Duration at .050”: 236
• Lobe Separation: 110
• Intake Centerline: 106
• Firing Order: 1-8-4-3-6-5-7-2
• Made in the USA

Comp Cams designed this Hydraulic Flat Tappet camshaft for high performance on the street and drag strip.

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