Description
This Howards Cams 128041-09 BBC Big Mama Rattler Hydraulic Flat Tappet Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. This camshaft provides a lopey idle and great throttle response. This cam requires a 9.0:1 or higher compression ratio and a 2400+ stall speed torque converter.
Howards Cams 128041-09 BBC Big Mama Rattler Hydraulic Flat Tappet Camshaft Specs:
- For Big Block Chevy 396-502 Mark IV engines from 1965-1996
- Basic RPM Range: 2000 to 5900
- Valve Lift Intake: .553
- Valve Lift Exhaust: .545
- Intake Duration: 289
- Exhaust Duration: 297
- Intake Duration at .050”: 235
- Exhaust Duration at .050”: 243
- Lobe Separation: 109
- Intake Centerline: 103
- Firing Order: 1-8-4-3-6-5-7-2
- Recommended Lifter Set: 91111 Performance
- Recommended Premium Lifter Set: 91116 Direct Lube
- Recommended Valve Springs: 98529
- Recommended Valve Spring, Retainer and Lock Kit: 98529-K31
- Made in the USA
Note: Stock (O.E.) valve springs can NOT be used.
Howards Cams designed this Rattler Flat Tappet hydraulic camshaft for high performance on the street and drag strip.
Howards Cams – For the ultimate in high performance!
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