The letters are painted on so I took some masking tape and a razor and covered them up. I used Dupi-Color Royal Blue paint...put on about three coats...let it dry over night then put about three coats of clear coat on it. I peeled the tape off the letters before I put the clear coat on. The nissan emblem is fairly hard to get off....I was taking real care not to damage it. I like it...really improved the look of the engine I think.
Oh and I also sanded the entire thing with 1000 grit paper to make sure the paint would stick good.