Got a question today Grumpy for You. Ready to move onto the next stage for the Trans Am 455 engine. What Coatings are used for Titanium connecting rods on the big end to prevent galling on the side checks against one another ? Six Crower Rods have 11 passes 1/4 mile at 900 hp. 2 are brand new. Ready to send them in to Crower and have them inspected. New piston pin Ampco Bronze bushings installed. Big ends checked out Ok by me and my engine machinist on size. Some of the plasma spray was galled. Crower Tech said they will re apply the coatings for a nominal fee in $$$. Rough quoted but I have it put away $$$$. Crower Tech is not sure himself what is used sprayed on. Whatever it is its super hard and tough. Maybe Chromium Nitrate.