Thermal coatings

[The Punisher]

I have this 11:1 406 small block chevy that I coated the pistons,combustion 
chambers, combustion side of the intake valve, both sides of the exhause 
valve and the whole exhaust port. I built a nearly identical engine several 
years ago (except it was more like 10:1) and I can tell you for certian that 
the coated engine is less prone to detonation even with the higher 
compression. I used tech line coating which requires SANDblasting the parts 
first(dont glassbead). I had the heads off 5 months ago during a cam change, 
and the heads, valves,pistons all looked good with no chips or flakes after 
3 years of medium commuting, cruising and the occasional dragrace.

Keith

>If I ever find the time to rebuild the engine in my turbo Sunbird, I'll 
>apply
>coatings to the head and pistons.  I'll be able to get a better idea of 
>their
>effectiveness.
>

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