Engine coatings

[MJSUKEY@cs.com]

There are all kinds of coatings being offered by different plating companies 
out there to be used on internal engine surfaces, different ones for blocks, 
cams, pistons, ..... all claiming to decrease friction, make your parts last 
longer, make your car go a million miles per hour, well you get the picture. On 
paper they look kind of interesting. Has anybody had any first hand experience 
with any of these coatings? Opinions good bad or indifferent?

Thanks,
Marty Sukey