I have used the Krylon Dark Ford Blue, back when everybody carried that, then Dupi-Color Dark Ford Blue, which seem to both be accurate in color. I believe the Krylon brand was absorbed into the now Dupli-Color offering. Ford started painting their engines blue in '66, the same shade of blue as is used in their Blue Ford oval, going way back. There has been a long standing conversation as to whether or not that lighter blue color, that you see some people use, and that some re-builders use, is appropriate. I don't think the light blue is correct, or even looks as good as the dark blue. I'm not sure if Ford really even used a light blue ever. To me, as long as the blue used is the dark blue, regardless of any slight differences in shading between brands, it will look factory. I don't think any body needs to split hairs over the dark shade, unless you are competing at Pebble Beach, or some such Concours event. If you're building a Cadillac, the Ford dark blue is super close to Cadillac's blue, and can be used for that as well. Dupli-Color makes a black engine color, that is dead-on correct for '65 V8s, Hi-Po 289s and 427s, which is a heat resistant Semi-Gloss Black DE1635, that is ALSO so right for all of those under hood black components, bracketry, and suspension stuff. Kinda off-topic, but there is a spectacular metallic turquoise engine color that was used on some AMC engines, and a metallic medium blue used on big block Oldses, that sadly,.... Dupli-Color doesn't offer,however, a company called Seymore has those colors in a spray-can format and can be sourced from the internet. Some Pontiac years used a light silver-blue metallic engine paint that not everyone carries anymore. Some Fords with 4 barrel carbs had gold painted valve covers, and the "engine gold" spray paint sold in auto parts stores is too dark. There is a "champagne gold" engine spray paint that is correct for those, again, over the internet ( possibly a Ford parts house too), that should be used. As , over the years, i've been tasked to build or restore many different makes of engines , I've had to search for the correct colors to paint them as well.
