Painting '76 Engine

[mgbeda]

I got my engine back from the rebuilder's a couple weeks ago, and while I'm still a ways from installing it in the frame so I can crank it up, there's already a problem.  While he painted it a darkish blue it is definitely not the correct Cadillac blue.  It's really obvious when you hold some of the accessories (which were removed pre-rebuild) next to it.  So I'll be repainting my engine.

My first question:  What do I have to do to prep this for painting?  My situation is unusual in that the engine has just been cleaned and painted, so de-greasing doesn't apply.  Do I just paint right over the current paint?  Do I need to prime first?  Do I need to etch the finish- if so with what?

Second question: I found this listing for paint from USA Parts supply (USA_PARTS_1971-1985_Cadillac_Catalog.pdf):

101P 49-76 All - Engine Paint - 12 Oz Spray Can.

Has anyone used this?  Is it the correct color?  I like that it comes in a spray can, as I don't have a paint sprayer, at least not yet.  I've read about the POR15, but it seems like it might be a bit hard to work with.

Thanks for your advice,

-mB

[Chris Conklin]

If you want to be sure it's correct, use Hirsch paint. They have rattle cans also. I wish they made house paint, it is so easy to work with. For the bulk of the engine you could use a brush, it's predominantly rough surfaces. Hirsch goes on very well and covers just great. It almost seems to be resistant to running and dripping and will cover in one coat.

If you trust what your mechanic applied (and how it was applied), I'd be comfortable painting over it. Maybe some sanding on the smooth bits that are gonna show to assure a nice glossy finish. I've attached a photo of my engine. I did an upper end and carb rebuild a couple months ago.

*Just want to add: I looked at USA Parts Supply catalogue... In the pictures of containers above the paint section in the .pdf catalogue - the can at the far left is a Hirsch paint can. The spray cans' manufacturers are indistinguishable. I bought Hirsch last November for $35 a quart and $16 per spray can. The prices may have changed since, but I would recommend you go directly to Hirsch.

[76eldo]

Get a fine grit scotchbrite pad and just lightly scuff it down.
Try a small spot first to make sure that the new paint does not react with or lift the old paint.
Wipe all of it down with a wax and grease remover because there are greasy fingerprints all over it that you can't see.

Post before and after pics of you can.

Brian

[mgbeda]

Thanks Chris and Brian,

I ordered three rattle cans from Hirsch.  I called USA part supply and they said they make their own paint.  Also it was $20 a can, and Hirsch's was $17 each (plus $15 shipping for three cans).

Any particular product you'd recommend for the wax and grease remover, Brian?

Thanks again,

-mB