Abrasive flow finishing

[Andris Skulte]

r_tech at earthlink.net wrote:
> 
> I read in an article on the net (or was it a magazine)somewhere about the surface texture of ports in a >cylinder head. It was something about the benefits of porting. What they mentioned was that the exhaust side >would benefit most from having a smoot
h finish vs the intake.

It's here at http://www.sa-motorsports.com/diyport.htm
The page is a great guide to DIY porting. You want the polished finish
on the exhaust so carbon doesn't start sticking, BTW :)

Andris