thumper cam

[71dartstroker]

any thoughts on the new thumper cams from comp. for small block

 

[496dart]

cant go wrong with Comp.

I would call them with your complete combo and they will recommend the right grind. 8)

 

[360moparjunkie]

496dart,
An awsome time for your orange bullet.

What type of internals?

71dartstroker,
Checking into this type (20-600-4) for my 360.
I have no solid facts yet.
I am however looking into mopar p4120249 valve springs to run w/it possibly.
Doing alot of homework myself in spare time on this as I am not an engine builder...just building an engine.
Good luck.

 

[wazoo64]

I have a hydraulic roller muthr thumpr in a 408. These cams get negative press from people that dont have them. They were built for sound as a marketing gimick but actually produce some good power. I have a 570HP dyno on pump gas.

 

[Wylde1]

I have a hydraulic roller muthr thumpr in a 408. These cams get negative press from people that dont have them. They were built for sound as a marketing gimick but actually produce some good power. I have a 570HP dyno on pump gas.

That's some sweet power. What's the rest of the build? Can you post the dyno sheet?


Wylde1.

 

[wazoo64]

Here is the link to a thread where I posted the dyno sheet. Kind of hard to read. Actually got a 580HP pull with a bigger carb also.

http://www.forabodiesonly.com/mopar/showthread.php?t=38112&page=2