Description
This Howards Cams CL128041-09 BBC Big Mama Rattler Hydraulic Flat Tappet Camshaft & Lifter Kit fits 396-502 cubic inch Big Block Chevy engines from 1965-1996. Howards designed this cam for Street and Drag Racing use, and it features a lopey idle. A 9.0:1 or higher compression ratio and a 2500+ stall speed torque converter are highly recommended.
Howards Cams CL128041-09 BBC Big Mama Rattler Hydraulic Flat Tappet Camshaft & Lifter Kit Specs:
- For Big Block Chevy 396-502 engines from 1965-1996
- Includes Camshaft 128041-09 and Lifter Set 91111
- 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
- Made in the USA
Note: Stock (O.E.) valve springs can NOT be used
Howards Cams designed this Flat Tappet camshaft for high performance on the street and drag strip.
Howards Cams – For the ultimate in performance!






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