4age bigport head: port & polish

[Os7213]

Yes im sorry ive call it a deck since im not very good in english i mean the entry just before the 2 ports is too low! I now see the error like a 45ft truck hitting me... That was my second question is it true you only need small material removing lol Yes cause the new ports ive made take me almost no time to do and i clearly see the difference now The port are more open ,with less material removal,and have a round shape only the valve seat need to be matched and material remove on wall and splitter, i think i have now a perfect idea of the shape of the ports thank a lot!

Im not sure ill be able to use the head with a port like that.. but that what it cost to learn!

Btw is this normal sometimes the valves seat are already bigger than the head..i mean to match them up cause on 2 valves seat on the head i cant remove any material to match up cause some material miss near the valve seat and create a little gap...

But anyway ill just learn with this one, just for fun prepare it like this, blot it on the engine and see what it does! Because im really not sure i can use a port like this. For this one i have made a test from a Honda engine who have like i did big open ports with the bottom of the ports very low...since i know nothing and need to experiement its my first try but today i have work on the second port and i now understand!

When i will finish ill send you a pic to show if i understand the thing!

Thank a lot
Ugo