head is still at the welding shop they are busy as hell these days with all the bent and damaged rims for this springs pot hole season.
The roller kit from Everest parts in Florida is play too.
Should arrive sometime in the next week or so
This fellow is selling copper thin head gaskets.
I might try one of these.
The seller offers to make thinner ones on his website.
Why the weld and copper gaskets?
I am trying to make the most of this for a very tight fit.
If I can get to .030 clearance between the welded chamber and the top of the piston then at speed the escaping gasses from this quench area will promote excellent mixing for improved power and economy.
There’s also something called swirl.
This has to do with the shape of parts and it was a common cast in design adaptation you would see on many engines in the 1980s.
You sacrificed flow to improve mixing for reduced emissions and gained a little bit of turbulence.
At this time in engine development the quench had gone out of favour because it caused emissions to increase
So here are some images of the quench and swirl and hopefully soon
I can get the head home and start working on that
Here is another interesting photo of the GM 2.5 litre iron duke head.
Thats sort of what my head will look like
And an image that shows this quench effect.
I hope to get an improvement in power and economy of 10% with these changes.
And the applications to wood gas are also there