C-Tech Performance has been working closely with Hamilton Cams to develop a CNC Porting Program for their brand new cast – raised port Cummins 12v Head. We are happy to announce that we have two full 5 axis CNC programs available. We have been working for the past several months with the 1.870 / 1.750… »
Cummins 24 Valve CNC Porting
C-Tech Performance has completed a CNC 5-Axis porting program for the Cummins 5.9 24 valve head. Check out flow numbers and pricing by clicking on the CNC Head Porting tab. And view video’s below.
Welcome to C-Tech Performance, LLC 
Precision Automotive Machine Shop
Welcome to C-Tech Performance LLC. We are a custom build machine shop. You will see as you browse our website
that we enjoy working on everything. Performance to Vintage, Marine to Diesel, Tractor to Import, Small engine to Race
and everything else. We got our start by taking on the projects that no one else wanted to do. We enjoy the challenge!
- High Performance Engine Assembly
- Precision Automotive Machining
- Performance Parts and Sales
- Bake and Blast Cleaning
- Chassis Dynamometer
- Engine Dynamometer
- Dynamic Balancing
- Aluminum Welding
- Head Porting
- Flow Bench
- Chassis
Hamilton 12v 6.7 bore / big valve head porting
We have been pushing the Hamilton 12v head further. We now have a CNC Port program for the 6.7 bore Cummins with a bigger port for a 2.050 intake valve. This head will now flow over 300cfm at .600 lift and 322cfm at .750 and keeps climbing ! We expect to see big power from these heads this year. Will they flow even more…..we are sure they will.
