Thumper Heads?

[Cheo69GT 1]

Anyone heard of them? I'm getting some good feedback from the 5.0L guys, good value, close or better to the GT40 heads, sold as a kit too. Website here http://www.thumperoforangepark.com/

 

The Performers are not going on the 5.0L, they'll go in the 69's 351, so I'm shopping around for the 5.0L, these heads and cam might be good for it. Thoughts? TIA :) Of course, thoughts on just machining the current heads, intake, etc. Original heads are cast iron, so aluminum, IMO, is the way to go.

[bnickel 10,004]

i've heard good things about the too but i wouldn't use them on the 351, since you're going to use them for the 5.0 i'd think you'll be ok. i haven't heard enough about them to hear anything bad but there is always someone out there who doesn't like something and it's worth investigating the bad stuff just to be on the safe side. for the price though, it's hard to go wrong.