I have been teaching myself (with some expert help) DIY head modding.
So far I have increased the chamber size by taking the walls out and roof down.
Next job, once the profile is correct, I need to make a template to apply the profile to the four chambers on the actual head. I plan to do this by making a card template with holes drilled in line with the valve stems, This can the be flipped either way up and used to scribe the outline for the chambers.
At some point I will need to re-cut the valve seats. I have a Neway 46 Degree and 30 Degree Valve Seat Cutters that fit both the inlet and exhaust.
When cutting valve seats, how do you ensure that the face of the seat is:
(a) at the correct height / depth in relation to the chamber roof?
(b) the correct width?
Here's the chamber I have been working on, I did a test cut of the valve seats in this chamber, but cheated and used a battery powered drill to rotate the valve cutter
Edited by JonnyAlpha, 22 July 2021 - 09:06 AM.