comp- thumper

[75 C20]

anybody tried one of these yet???

http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Code=TMPRSBC&Category_Code=Thumpr

[FlatBlack77]

I had my sights set on one for a while...then I found out they are over $300.

[Captkaos]

it also doesn't included the roller lifters...  And requires a larger stall and gears.

[75 C20]

wellp- there goes that idea

[team39763]

I've read that they weren't "all that".  A guy had said that you'd be better off getting a real performance cam rather than this "marketing gimmick". I agree, my custom grind cam for my 6.0 cost the same as that thumper.  But isn't that thumper a retrofit cam - meaning you'd need $300 lifters and other required parts?

[Captkaos]

the cam is for the older non-roller equipped blocks, but that isn't anything new.  It does required the roller lifters ($500) a full roller timing chain, cam button and a different ditributor gear.