Titanium Nitride coating helps avoid the vertical stripes often seen on Nikasil plated alum wall cylinders.

750s up to 75 hp and Domi 650s benefit from Ultralightweight 6.4" Carrillo rods. (MORE INFO).

More durable than Molly and other coatings. Recommended for all uncoated pistons for tighter installation clearance, reduced friction and longer life. Note that many of our flat top pistons come precoated at no extra charge. All Domni, domed and stock rod pistons are uncoated. This aftermarket graphite coating is superior, longer lasting and extends the piston life.  Our domed, extra high compression flat top, Domni and special order pistons are not coated.  If the pistons you order already have a coating then you will be refunded. Image of piston coating after 7 racing seasons.