Howards Cams CL414145-12 Pontiac 4/7 Swap Hydraulic Roller Camshaft and Lifter Kit

This Howards Cams CL414145-12 Pontiac Retro-Fit 4/7 Swap Hydraulic Roller Camshaft and Lifter Kit fits 265-455 cubic inch Pontiac engines from 1955-1981. Howards designed this cam for street performance, and it features good low to mid-range torque & power and a good idle. A 9.0:1+ compression ratio, lower rear end gears and a 2200+ stall speed torque converter are highly recommended.

4/7 Swap camshafts change the firing order to create even more power!

Howards Cams CL414145-12 Pontiac Hydraulic Roller Camshaft and Lifter Kit Specs:

• Ignition Firing Order Must Be Changed To: 1-8-7-3-6-5-4-2
• For Pontiac 265-455 engines from 1955-1981
• Includes Camshaft 414145-12 and Lifter Set 91466
• Basic RPM Range: 1800 to 6000
• Valve Lift Intake: .525
• Valve Lift Exhaust: .520
• Intake Duration: 272
• Exhaust Duration: 282
• Intake Duration at .050”: 219
• Exhaust Duration at .050”: 229
• Lobe Separation: 112
• Intake Centerline: 108
• Made in the USA

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

Howards Cams designed this Hydraulic Roller camshaft for high performance on the street.

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