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COMP Cams Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .489"/.476" Duration 287/305 RPM Range 2200 to 6100

249-CL12-601-4


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Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .489"/.476" Duration 287/305 RPM Range 2200 to 6100
$371.95
2 left in stock
Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .489"/.476"
Duration 287/305
RPM Range 2200 to 6100
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Price
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CL12-601-4 - Comp Cams Thumpr Hydraulic Flat Tappet Cams is rated 3.7 out of 5 by 3.
Rated 5 out of 5 by from perfect i have owned all 3 cams in this series for sbc. The muthathumpr is my favorite. in a .40 over 350 202 heads and flat top pistons, and sounds great with open headers. so happy.
Date published: 2014-11-22
Rated 1 out of 5 by from Cam and lifters failed right from first fire! Coated everything with the lube that came with it had penngrade break in oil in it also chewed 2 lifters right off the bat not very happy
Date published: 2019-10-03
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Will this cam work with stock throttle body and computer on a 92 gmc 1500 350ci

Asked by: Bc86
The Comp 249-CL12-601-4 cam kit does not work with '92 C1500 EFI.
Answered by: jshook
Date published: 2023-11-03

What valve springs are recommended for this cam? 

Asked by: Tls25
The Comp 249-CL12-601-4 cam uses Comp 981-16 spring.
Answered by: jshook
Date published: 2023-11-04

What valve spring weight do I need to run with this cam?

Asked by: 1990 firebird
The Comp 249-CL12-601-4 cam kit uses Comp 981-16 springs.
Answered by: jshook
Date published: 2023-11-06

Can you use the stock camp gear and timing chain or do I need another kit for it

Asked by: Justin
The Comp 249-12-601-4 cam is compatible with a stock gear and timing set.
Answered by: jshook
Date published: 2023-11-04

Is this cam compatible for roller rocker?

Asked by: Andrew355
Yes, you can use this with a roller rocker arm kit.
Answered by: Rusty B
Date published: 2023-11-04

Will I need a new torque converter for this cam

Asked by: Cj parker
That cam requires a 2400+ rpm stall speed converter
Answered by: SteveM
Date published: 2023-11-12

will i need differnt push rods for this cam

Asked by: Boggie58
This cam uses stock length pushrods.
Answered by: Jon Jegs Tech
Date published: 2023-11-12
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Mutha' Thumpr™ - High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.AMC; Jeep; 4.0; 290; XJ; Cherokee; Wagoneer; Comanche; Grand Wagoneer; Wrangler; JK; Rambler; Eagle; ZJ; Chrysler; AM General; American Motors; 327; 390; 304; 327; ...
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Best with 2000+ Converter & Gears. Choppy/Thumping IdleCamshaft And Lifter Kit3 Grinds To Fit All Of Your Performance NeedsLong Exhaust DurationProduces A Powerful Hard-Hitting Exhaust NoteExcellent Horsepower Gains And Broad Torque CurveDelivers Real Seat Of The Pants PerformanceDesigned For Use ...
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