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COMP Cams 12-602-4 Big Mutha Thumpr Cam, S/B Chevy, 2500-6400 RPM

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Specs
Sold in Quantity:
Each
Camshaft Type:
Hydraulic Flat Tappet
MFG. Part #:
12-602-4
RPM Range:
2500 to 6400
Intake Duration:
295
Exhaust Duration:
313
Intake Duration @ .050" Lift:
243
Exhaust Duration @ .050" Lift:
257
Lobe Separation:
107
COMP Cams 12-602-4 Big Mutha Thumpr Cam, S/B Chevy, 2500-6400 RPM
VIDEO
COMP Cams 12-602-4 Big Mutha Thumpr Cam, S/B Chevy, 2500-6400 RPM

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Watch the videos below to see how Comp Cams are made and what they sound like on a dyno.



Details

Reviews (1)

Q & A (2)

What's in the Box

Info

Have you ever been to the races and heard how nasty the cams sound? Comp Cams has developed the Thumpr series of cams that give you every day drivability, but have that nasty race engine sound. Pick the cam that fits your application, add a set of COMP Cam hydraulic lifters and you will be the talk of the town. 

Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Thumpr Application Chart (GIF)

282-126024 Specs (PDF)

Customer Reviews

Rated 5 out of 5 by 1 reviewers.
RATING BREAKDOWN
1 reviews
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Jake the cake
Connersville IN

blazer

November 20, 2015
I have a 1991 s10 blazer with 4.10 gears headers and a 5.7 . Installed this cam got it all together and it sounds Great. Makes plenty of power and sounds like pro street monster. (I have NV3500 5 speed transmission behind it) GREAT CAM!
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

2 questions : 2 answers

1 answers

will this work with power brakes or do you have to run a vaccum pump ?

trav
July 08, 2015

will this work with power brakes or do you have to run a vaccum pump ?

Answers

July 08, 2015
Eric
Expert
Typically with a 350 engine this cam doesn't provide enough vacuum.
1 answers

I have this cam in a sbc 355 with an auto th350 trans do i have to get a bigger stall if not what will happen

jets258
ohio
May 01, 2016

I have this cam in a sbc 355 with an auto th350 trans do i have to get a bigger stall if not what will happen

Answers

May 02, 2016
Eric
Expert
You would be best off using a higher stall converter such as a 2500 to 3000 RPM stall. The engine will not have much low RPM power with this camshaft and will be fairly sluggish with a stock converter.
Page 1 of 1

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