Anyone ever notice on the A35 engine that an Airsal kit with a stock head just BARELY even fits?
I measured the sealing diameter of the Airsal to be 45.85mm But the outer diameter of the stock head surface was only about 47.2 mm diameter. That Ain't much!
Also, I found that my mysterious engine knock went away by adding base gaskets. So I added enough base gaskets to completely get rid of the knock. Unfortunately my engine had absolutely NO power, so I tried something different.
Right now I'm running a head gasket made out of gasket material. I noticed a considerable loss in low end power, but I definatly gained some high end speed back.
When I ran with not base gasket, and no head gasket the engine would misfire like crazy at high rpms. Now it has almost completely stopped, and doesn't even begin till much higher rpms than before.