Epoxy in the intake? Ms660

Hey fellas,
Keeping seeing in the 660 build threads guys saying they have epoxied the intake. I looked through cant really find any good pictures of this and or why its being done? Can you guys post some pictures and explain why you are doing it? Thanks!

 

MS660's are known to have too much exhaust duration. They seem to run better with the exhaust opening down around 100° after tdc. Stock, they vary from about 93 to 98°. In order to get the exhaust port physically lower, the base gets cut on a lathe. This also makes the intake lower. Sometimes too low for good performance. Many consider an 80° intake opening to be about right, but most of the Farmertec cylinders have the intake down around 86. After machining, they get close to 89°, which isn't optimal. Filling the bottom of the intake port with epoxy allows you to grind it down to a more preferred opening height

 

Awesome thanks!

 

Awesome! Pictures are worth a thousand words. Thats the visual I had in mind with huskihl description. Now with pictures I am on board 100%.

 

Port prep is big, definitely wash and degrease cylinder. I like to grind in a few dimples on the floor. Then bead blast