Comp Cams 11-246-3 BBC Extreme Energy Cam XE274H-10

This Comp Cams 11-246-3 BBC XE274H Xtreme Energy Hydraulic Flat Tappet Camshaft fits the 396-454 Big Block Chevy from 1967-1996. Comp designed this cam for high performance street use, and it features very strong mid-range and a smooth idle. A 9.0:1 or higher compression ratio and a 2200+ stall speed torque converter are highly recommended.

Comp Cams 11-246-3 BBC XE274H Xtreme Energy Hydraulic Flat Tappet Camshaft Specs:

  • For 396-454 cubic inch Big Block Chevy engines from 1967-1996
  • Stock (O.E.) valve springs can NOT be used.
  • Basic RPM Range: 1800 to 6000
  • Valve Lift Intake: .552
  • Valve Lift Exhaust: .555
  • Advertised Intake Duration: 274
  • Advertised Exhaust Duration: 286
  • Intake Duration at .050”: 230
  • Exhaust Duration at .050”: 236
  • Lobe Separation: 110
  • Firing Order: 1-8-4-3-6-5-7-2
  • Made in the USA

Notes: The 1965-66 396 has an oiling groove in the rear journal. This cam does not, so if you require the oiling groove, please contact us for a special order.

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

Comp Cams –The Absolute Leader In Valve Train Technology!

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