Here's a look at how we receive our TFS castings and what they look like after port work.

For those that don't know we receive them in a porter's casting (raw), and then run our port program through the heads which you'll see in the second image.






For anyone looking to upgrade their stock castings for a set of TFS cylinder heads with the Frankenstein port program in the cat port version. We have two options.

TFS 237cc = $2900
TFS 254cc = $3250

 

Wow that port opens up a lot. Looks really nice. I've heard good things about you guys!

Any numbers to show your guys' port job vs the standard port that comes from TFS?

 

oakley6575,

Thanks! You can find TFS standard port numbers on their site or Summits. Our 237s breakdown like so:

Intake Volume 237cc
Exhaust Volume 83cc
Chamber Volume 65cc

Intake Flow 292cfm @ .400”
348cfm @ .700”
Exhaust Flow 218cfm @ .400”
255cfm @ .700”