Howards Cams 128041-09 BBC Rattler Hydraulic Flat Tappet Camshaft

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!