Comp Cams 51-220-4 Pontiac Xtreme Energy Hydraulic Flat Tappet Camshaft XE250H

This Comp Cams 51-220-4 Pontiac XE250H Xtreme Energy Hydraulic Flat Tappet Camshaft fits the 265-455 Pontiac engines from 1955-1981. Comp designed this cam for street/strip use, and it features very strong torque with excellent mileage and a smooth idle. A 9.0:1 or higher compression ratio and a 1200+ stall speed torque converter are highly recommended.

Comp Cams 51-220-4 Pontiac XE250H 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: 600 to 4800
• Valve Lift Intake: .432
• Valve Lift Exhaust: .444
• Advertised Intake Duration: 250
• Advertised Exhaust Duration: 250
• Intake Duration at .050”: 206
• Exhaust Duration at .050”: 212
• 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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