About this product
This Comp Cams CL51-600-5 Pontiac Thumpr Hydraulic Flat Tappet Camshaft & Lifter Kit fits 265-455 engines from 1955-1981. Comp designed this cam for high performance street use, and it features a choppy/thumping idle. Lower rear end gears and a 2200+ stall speed torque converter are highly recommended.
Comp Cams CL51-600-5 Pontiac Thumpr Hydraulic Flat Tappet Camshaft & Lifter Kit Specs:
- For 265-455 cubic inch engines from 1955-1981
- Includes Camshaft 51-600-5 and Lifter Set 852-16 (265-301 engines must use Lifter Set 864-16)
- Stock (O.E.) valve springs can NOT be used.
- Basic RPM Range: 2000 to 5800
- Valve Lift Intake: .478
- Valve Lift Exhaust: .465
- Advertised Intake Duration: 279
- Advertised Exhaust Duration: 297
- Intake Duration at .050”: 227
- Exhaust Duration at .050”: 241
- Lobe Separation: 107
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Note: 265-301 cubic inch engines MUST use Lifter Set 864-16.
Comp Cams designed this Hydraulic Flat Tappet camshaft for street use.
Comp Cams –The Absolute Leader In Valve Train Technology!
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.
