[ChillyBear]

Originally Posted by freebeard

I think you question deserves an answer:

• Blueprinted for clearances and balance.
• Wear surfaces cryogenically tempered prior to machining.
• Exterior surface with heat-rejecting aerospace coatings.
• Combustion chamber surfaces (head, cylinder valve heads.) coated with ceramic heat-proof coatings.
• Piston skirts, rings and bearings with low-friction aerospace coatings.
• Anti-reversionary headers and everything everyone else has suggested.

You can price that all out, calculate the ROI and have a sad.

ROI=sad.