O.S. .46 AX Shims
If anyone is interested, I will have some extra O.S. .46 AX head and Sleeve Shims at the NCPL meeting on Saturday for a nominal fee. I have them in both .002 and .004 thicknesses for both the head and sleeve. Due to the locator pin for the sleeve, you will need to slightly notch the sleeve shim to fit (trust me, this is not a big deal). The head shims are a perfect fit.
I have not tried messing with the sleeve height on this engine, but when I look at the exhaust port, it seems to sit very low in the exhaust opening. Not sure if it would help to raise it, but wouldn't hurt to experiment.
The shims aren't free, but I'm not going to profit by this either. They are laser cut, and turned out very good.
Thanks A.J.