Internal Engine Coatings

[Bob The Builder]

I remember back to when I was a 19 or 20 year old building smallblock Chevys, and I used to read articles in Hot Rod or Car Craft, and looking back, there was an article on engine coatings.

Basically, you woul assemble the short block and then send it to this company and have them apply some kind of chemical which I believe would be applied and chemically and through heat become bonded to all metal surfaces, kind of like what Militec does on its own. Is this something that anyone is familiar with?

BtB

 

[nascarnation]

http://circletrack.com/techarticles/general/139_0307_coat/

 

[crossbow]

Manufacturers use coatings as well. The Mazda 6s's (3.0 V6 Duratec) have moly coated piston crowns, and graphite coated piston skirts.

 

[Bob The Builder]

Sorry it took so long for me to get back to this post and reply. So what's the final analysis on the coatings for internal parts? Does anyone else have an opinion on this, as I may be considering this when I finally rebuild an engine of mine?

BtB

 

[JohnBrowning]

Tin
Moly
Chrome
Cerami-chrome
graphite
ZDDP
Nitride(carious types)
Resein
nickle

I have seen these used by various manufactures,aftemarket, and machine shops.