About this product
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!
Description supplied by Winners Circle through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
