66 Dart GT HT Whatsitgonnabe?

1967 'cuda said
There's a bit of controversy concerning the use of coatings on the interior surfaces. Some people say that you risk it coming off and plugging up the lubrication system.

I strongly suspect that those that had adhesion issues failed to prepare the surfaces and apply it correctly. Obviously, any paint that would come loose could lead to catastrophic damage. I wouldn't advise anyone to use Glyptal who hasn't researched it.

Like most paints it won't want to adhere to a dirty (or oily) surface. Castings are notorious for being porous. - And a lot of people seem unaware that contaminants like oil can be present although unseen.

A successful application of this paint really should be preceded by thorough cleaning and followed with heat.

I've heard of lacquer thinner being used as one of the last cleansers. The fact that it evaporates quickly helps reduce 'liquid pockets'. Some guys will use a torch or heat lamps to cook out any leftover lacquer residue and then heat lamps or ovens to fully cure the paint.

That’s what I did, I went over the block with a propane torch and a rag and then cleaned with brake cleaner.

Maybe for the inside I should use thinner.

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