BMW M3 S14 cylinder head cnc-porting from stock size to DTM specs! #bmws14 #bmwdtm #ngmotorsports #cncporting #bmwm3 #bmwe30 | By NG-Motorsports | Facebook
Porting a steel cylinder head by hand is a nightmare, by cnc machines it is just a cup of coffee and a chat with a colleague! ;-) #opelcih #opelmanta... | By NG-Motorsports
Porting a steel cylinder head by hand is a nightmare, by cnc machines it is just a cup of coffee and a chat with a colleague! ;-) #opelcih #opelmanta... | By NG-Motorsports
Porting a steel cylinder head by hand is a nightmare, by cnc machines it is just a cup of coffee and a chat with a colleague! ;-) #opelcih #opelmanta... | By NG-Motorsports
Porting a steel cylinder head by hand is a nightmare, by cnc machines it is just a cup of coffee and a chat with a colleague! ;-) #opelcih #opelmanta... | By NG-Motorsports
Porting a steel cylinder head by hand is a nightmare, by cnc machines it is just a cup of coffee and a chat with a colleague! ;-) #opelcih #opelmanta... | By NG-Motorsports
![Calling all DIY cylinder head porting gurus ! Now with flow bench testing + progress - LS1TECH - Camaro and Firebird Forum Discussion Calling all DIY cylinder head porting gurus ! Now with flow bench testing + progress - LS1TECH - Camaro and Firebird Forum Discussion](https://cimg8.ibsrv.net/gimg/ls1tech.com-vbulletin/900x1600/20160426_095449_e136634856600f96af8261279ed733cde949a574.jpg)