High-heat primers?

[57CaddyBiarritz]

Hi-

I'm starting to paint the metal engine parts, including the block, on my 57 Cadillac and am thoughroughly confused over painting and the primer question.

1) Is it necessary to prime the block and other parts that will reach high temps, with a high heat primer?  Maybe I'm missing it, but I didn't see a high-heat primer on the Eastwood site, which I found odd.
2) I've heard self etching, urethane, epoxy as all possible primers - Which one should I use?  I was going with self etching, but have heard conflicting info.

I'm hoping some of the paint experts out there can shed some light on what to do.

Thanks,
John

[Walter Youshock]

Don't prime cast iron parts like the block, intake manifold, water pump, oil filler tube or even the fuel pump.  Stamped steel parts like the valve covers, engine cover, pulleys, etc. should be stripped and primed for best adhesion and presentation.  All I use is high-temp engine primer from the auto parts store and it works fine.