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Comp Cams Performance Parts
Comp Cams 12-601-8
Comp Cams 12-601-8 Mutha Thumpr Cam CS 291T HR-107 530x600
[click to enlarge]
Comp Cams 12-601-8
• Muscle car sound is back
• Hard hitting, lumpy idle
• Excellent throttle response and "streetability"
• Significant horsepower increase

Not legal for sale or use on polluton controlled motor vehicles.
Our Price: $296.95
UPC 036584148395
Free Shipping and Handling for orders over $99!
(US only. Excluding any oversize charges.)
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1Estimated Shipping Dates are based on available inventory and the nearest warehouse.
Performance Parts is a Comp Cams authorized performance retailer
Product Info Related Items
Comp Cams 12-601-8 "Mutha Thumpr" Retro-fit hydraulic roller camshaft.
Fits 1955-1998, 265-400 cu.in. Chevrolet V8.

The newest line of camshafts from Comp Cams is the "Mutha Thumpr". This retro-fit hydraulic roller cam is designed for use in engines that originally used a flat tappet cam. It will give a significant increase in horsepower over an identical flat tappet grind. The "Mutha Thumpr" uses lobe profiles and grind characteristics that produce an early valve opening, long exhaust duration, and a generous overlap to give the engine a powerful and hard hitting exhaust note and a rough idle without sacrificing power output or streetability.


RPM range: 2,200 to 5,900 rpm
Duration at .050" lift: 235/249 (int/exh)
Valve lift with 1.5 rockers: .522"/.509" (int/exh)
High performance street, best with 2500+ stall converter, choppy idle.
Shipping Weight/Dimensions:
Weight:8.64 lbs
Height:3.00 in.
Length:24.50 in.
Width:3.00 in.
Shipping from warehouses in the U.S. and Canada!
Performance Parts has over 20 warehouses in the U.S. and Canada so you can get your parts duty free! Call for availability.
Comp Cams 2100
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Comp Cams 2100 "Magnum" Double roller timing chain set.
Fits 1955-1991, 265-400 cu.in Chevrolet V8s
(Except those with factory roller cam)
Comp Cams 1412-16
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Comp Cams 1412-16 "Magnum" roller rocker arms.
Fits 265-400 cu.in. Chevrolet V8s
Comp Cams 159
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Comp Cams 159 Camshaft Break-In Lube 12oz
Comp Cams 26918-1
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Comp Cams 26918-1 Beehive Valve Springs
Fits General Motors LS1, LS2, and LS6 engines
Comp Cams 26918-16
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Comp Cams 26918-16 Beehive Valve Springs
Fits General Motors LS1, LS2, and LS6 engines
Comp Cams 3100
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Comp Cams 3100 "Hi-Tech" roller timing chain set.
Fits 1955-1991, 265-400 cu.in. Chevrolet V8s, and 1978-1986, 90 degree V6 engines (except those with factory roller cam)
Comp Cams 501-16
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Comp Cams 501-16 Valve Guide Seals
Fits small block Chevrolet V8s
Comp Cams 1601-16
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Comp Cams 1601-16 Rocker Arms CS 1.52 3/8 Ultra Pro Mag
Alternate Items
Comp Cams 611-16
$21.97
Comp Cams 611-16 "Super Locks" valve locks.
Comp Cams 853-16
$473.95
Comp Cams 853-16 "High Energy" Hydraulic roller valve lifters.
Fits 265-400 cu.in. Chevrolet V8s, Retro fit for early model blocks originally equipped with a flat tappet cam.
Comp Cams 26918-16
$172.97
Comp Cams 26918-16 Beehive Valve Springs
Fits General Motors LS1, LS2, and LS6 engines
Comp Cams 648-16
$22.95
Comp Cams 648-16 11/32 7 degree Machined Steel Lock
Comp Cams 7609-1
$7.95
Comp Cams 7609-1 Magnum Pushrods
Comp Cams 7609-16
$99.97
Comp Cams 7609-16 Magnum Pushrods
Comp Cams 787-16
$49.97
Comp Cams 787-16 Steel valve spring retainers
For use with Comp Cams 26915 or 26918 valve springs in non-LS1 engines.
Comp Cams 7940-16
$134.95
Comp Cams 7940-16 Hi-Tech pushrods fits small block Chevrolet V8s.
Comp Cams 795-16
$53.95
Comp Cams 795-16 Steel valve spring retainers
For use with Comp Cams 26120 valve springs
Comp Cams 26986-16
$184.95
Comp Cams 26986-16 Valve Springs
Will fit a variety of small block engines.
- Last Updated: 2014-08-27 17:08:33 -
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