All BTSV cylinder heads have a "chamber" in which the sparkplug is placed.
Does anybody know why the sparkplug is put in such a "chamber"?
If I'm correct, the WLDR and KR heads do not have such a chamber.
I am wondering if I could close the chamber and drill/tap a new sparkplug hole that does not have "the chamber" and is positioned 90 degrees and not angled as it is now. I believe this would have a positive effect on the combustion process.
My goal is to raise the compression ratio and to improve the combustion efficiency for my 91" stroker ULH.
Relieving and flowing is already finished and I have custom 0.56" and .508" cams.
All info is highly appreciated!