Description
This Howards Cams 411161-10 Pontiac Hydraulic Flat Tappet Camshaft fits 265-455 cubic inch Pontiac engines from 1955-1981. Howards designed this cam for street/strip use, and it features strong mid-range performance and a mild rough idle. A 9.0:1+ compression ratio, lower rear end gears and a 2400+ stall speed torque converter are highly recommended.
Howards Cams 411161-10 Pontiac Hydraulic Flat Tappet Camshaft Specs:
- For Pontiac 265-455 engines from 1955-1981
- Basic RPM Range: 2000 to 6000
- Valve Lift Intake: .465
- Valve Lift Exhaust: .470
- Intake Duration: 277
- Exhaust Duration: 289
- Intake Duration at .050”: 223
- Exhaust Duration at .050”: 235
- Lobe Separation: 110
- Intake Centerline: 106
- Firing Order: 1-8-4-3-6-5-7-2
- Recommended Lifter Set: 91411 Performance
- Recommended Valve Springs: 98412
- Recommended Valve Spring, Retainer and Lock Kit: 98412-K11
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used.
Howards Cams designed this Flat Tappet Hydraulic camshaft for high performance on the street and on the drag strip.
Howards Flat Tappet Hydraulic Cams – From mild to wild, they are the ultimate in performance!
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