Gorkon
New member
I am restoring a 70 SS 338 and plan on having the thermal barrier coatings done by Swain technologies on the piston tops and the poly graphite coating on the skirts. I have read on another site that it is not recommended to do the thermal barrier coating on top of the pistons, especially for free air engines!?
It was suggested that the F/A guys were experiencing problems because of this coating. I inquired as to exactly what problems and the reasons why and was never answered. Does anyone have any firsthand knowledge with this that can tell me what the concerns are?
I would think that it would a be blessing for free air engines and thought it was exactly what my old GPX 338 needed. When it was tuned to the edge when I was racing it had an insatiable appetite for pistons!
My thoughts are that it may simply take a little longer to get the engine properly warmed, as in, to get the piston warmed up and expanded the correct amount before any WOT. Other than that I can see no downside. Anybody? Thanks. G.
It was suggested that the F/A guys were experiencing problems because of this coating. I inquired as to exactly what problems and the reasons why and was never answered. Does anyone have any firsthand knowledge with this that can tell me what the concerns are?
I would think that it would a be blessing for free air engines and thought it was exactly what my old GPX 338 needed. When it was tuned to the edge when I was racing it had an insatiable appetite for pistons!
My thoughts are that it may simply take a little longer to get the engine properly warmed, as in, to get the piston warmed up and expanded the correct amount before any WOT. Other than that I can see no downside. Anybody? Thanks. G.