Description
This Howards Cams 510011-12 Oldsmobile Hydraulic Flat Tappet Street Force 1 Camshaft fits 260-455 cubic inch Oldsmobile engines from 1967-1990. Howards designed this cam for mild street performance, and it features strong low end torque and a good idle. A 9.0:1+ compression ratio, lower rear end gears and a 1500+ stall speed torque converter are highly recommended.
Howards Cams 510011-12 Oldsmobile Hydraulic Flat Tappet Street Force 1 Camshaft Specs:
- For Oldsmobile 260-455 engines from 1967-1990
- Basic RPM Range: 800 to 4800
- Valve Lift Intake: .448
- Valve Lift Exhaust: .475
- Intake Duration: 259
- Exhaust Duration: 269
- Intake Duration at .050”: 205
- Exhaust Duration at .050”: 215
- Lobe Separation: 112
- Intake Centerline: 108
- 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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