318 head porting for the average joe

18teener said

I thought I would make a start on my 318 heads. This is my first port (on a 318) so any comments/feedback would be welcome.
One question regarding the exhaust port. Can I remove the hump on the roof completely or do I risk water?
View attachment 1715704583
Thanks.

Click to expand...

Shorten the guide.
Make that bowl more evenly round and think light bulb in shape, to a minor extent.
Come in from the port window and mildly work the floor on the common wall side of the port to be straighter, still ramping up a hair, but make it so its 'flat meets short turn lip'.
Go straight up from the lower 60 angle and then laid back just a hair all the way to the ssr peak. Work the common wall bowl side into the wall near the head bolt. I have some videos I'm putting together. Lost one, had to start over. Hard to find the time to play around.