Jason, That's pretty cool and I would love to see the results but I'm in too deep to change course now. I'm right on the verge of a major breakthrough. Good news regarding the custom pistons. After a few more inquiries they will now make the pistons to fit my pins. Not sure what changed but I'm pleased. I will not have to do anything to the rods. Considering the time and uncertainty of machining the pistons and cost of rings it looks pretty good. They can probably make them lighter as well. Engine needs to be balanced already.

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Tony H
W111 280SE 3.5 Coupe
Manual transmission

Past cars:
Porsche 914 2.0
'64 Jaguar XKE Roadster
'57 Oval Window VW
'71 Toyota Hilux Pickup Truck-Dad bought new
'73 Toyota Celica GT