This Howards Cams 258111-09 Ford FE Hydraulic Flat Tappet Big Daddy Rattler Camshaft fits 352-428 cubic inch Big Block engines from 1963-1977. It is great for pro street or street/strip use, and it features a rough idle. A 9.5:1+ compression ratio and a 2800+ stall speed torque converter are highly recommended.

Howards Cams 258111-09 Ford FE Hydraulic Flat Tappet Big Daddy Rattler Camshaft Specs:

• For Big Block Ford FE 352-428 engines from 1963-1977
• Basic RPM Range: 2400 to 5600
• Valve Lift Intake: .548
• Valve Lift Exhaust: .548
• Intake Duration: 297
• Exhaust Duration: 305
• Intake Duration at .050”: 243
• Exhaust Duration at .050”: 251
• Lobe Separation: 109
• Intake Centerline: 103
• Requires adjustable valvetrain
• Firing Order: 1-5-4-2-6-3-7-8
• Made in the USA

Note: Stock (O.E.) valve springs can NOT be used.

Howards Cams designed this Flat Tappet camshaft for performance on the street and the drag strip.

Howards Hydraulic Flat Tappet Cams – From mild to wild, they are the ultimate in performance!