I have a set of 5.3 heads laying around the house and I'm thinking about having them ported so I can put them on my car. I've heard a lot of talk about patriot and they seem to be the best bang for the buck I just want to make sure before I dump some money into these heads.

 

I've got a set of 317's I was thinking about having the same thing done.

 

 

TEA! I paid $1300 for mine.

 

Just to port? Or for a complete set of heads?

I believe everyone here already has a set of heads, they are just looking to send them to somebody to port it out.

 

Texas speed said they would put my 317 through their CNC machine with a cnc valve job for $550...

 

Hmmm, not too bad. Did they happen to mention any kind of flow numbers after this?

 

I'd go PRC or TEA

 

I would imagine its the same porting program they use on there heads. This is the flow numbers off the TSP site..


Intake
Valve Lift cfm

.100" 72
.200" 149
.300" 205
.400" 255
.500" 287
.600" 307
.625" 310