DZZ71
"Living The 6.5 Dream"
As i progress with my engine build i decided to go do some porting on my heads since this is a test engine for me. I read lots of people doing it but dident find any pictures of before and after. So i snapped some photos of my project for anyone else who might be pondering this mod with out paying a professional....... And yes im very aware there are cracks between my valves. Now what i did was clip in my intake gasket and scribe the edge with a paint marker that needed to be removed. I feathered it out a ways back and i now know why there is talk of 20-30 CFM gain from a full blown port job there is alot of restrictions in there. If you look at the top of the one before photo you will see a high spot. That is from the valve cover bolt up top. I completly ground it flush and took off the rough haggerd surface as far back as i could (needed a longer bit). Now that's about it for the intake side of things. If you look at the valve side photos you will see a lip protruding below the valve seat. I ground that all off and featherd it all back as far as i could go. Make sure to be carefull around the valve seat... After the die grinding was completed i put a tiny sanding bit on and cleaned it all up real nice to a very smooth finnish. Not sure on the gains i will get from this. But it should help a little 
Im gonna die grind my pre cups a bit wider as well to. Time invested was about 5 hours. My good set of heads for the other engine will be done alot better then these oldwarn out ones. I will post the results of this mod.
Im gonna die grind my pre cups a bit wider as well to. Time invested was about 5 hours. My good set of heads for the other engine will be done alot better then these oldwarn out ones. I will post the results of this mod.
