Description
This Howards Cams CL418045-09 Big Mama Rattler 4/7 Swap Retro-Fit Hydraulic Roller Camshaft & Lifter Kit fits the 265-455 Pontiac from 1955-1981. Howards designed this cam and lifter kit for street/strip use, and it has a lopey idle. A 9.0:1 or higher compression ratio and 2500+ stall speed torque converter are highly recommended.
Howards Cams CL418045-09 Big Mama Rattler 4/7 Swap Retro-Fit Hydraulic Roller Camshaft & Lifter Kit Specs:
- For 265-455 cubic inch Pontiac engines from 1955-1981
- Includes Camshaft 418045-09 and Lifter Set 91466
- Basic RPM Range: 2000 to 5400
- Valve Lift Intake: .530
- Valve Lift Exhaust: .530
- Intake Duration: 288
- Exhaust Duration: 296
- Intake Duration at .050”: 235
- Exhaust Duration at .050”: 243
- Lobe Separation: 109
- Intake Centerline: 103
- Firing Order: 1-8-7-3-6-5-4-2
- Quantity: Sold as a kit
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used. Ignition firing order MUST be changed to 1-8-7-3-6-5-4-2.
Howards Cams designed this Retro-Fit Hydraulic Roller Camshaft and Lifter Kit for high performance on the street and drag strip.
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