The engine bearings are "mostly" Clevite 77 products with Calico's coatings. The single exceptions are the camshaft bearings, where Tom has chosen Durabond parts. These too are treated with friction reduction coatings. Are you getting the message about performance coatings yet? They work on many levels for different purposes all throughout a performance engine, and if you've never run them before, you're giving up some free horsepower. No other changes are required to see the benefits of performance coatings.