"Unless I hear to the contrary, the plan is to have the dome at 0.040" from the head with the appropriate valve reliefs to clear the valves and then lower the compression either by lowering the flat of the piston or actually just putting a dish in the flat of the piston. I'm leaning hard towards the dish in the lower part of the piston as I can keep the compression height in a more measurable postion and also keep quench better in the upper portion of the cylinder. The sales guy I'm talking to at Wiseco is up to speed on these engines and has some ideas also in how to maintain the dome while also lowering the compression ratio.}
Maintaining the dome configuration is paramount as this is the combustion chamber. Dishing the pistons sounds like the correct way to control CR. What ratio are you aiming for?
Have you considered flycutting the piston dome for valave relief if needed?
The double head gasket procedure was used when MEL raised the deck height on fairly early blocks (gaskets used to decrease CR on very early blocks).
So your approach is to lower the piston top by moving the pin position upwards?
When this is all said and done, we need you to give all the technical details (if you will) so others may assemble their engine without using generic slugs.
