Has anyone had any experience with these gaskets? I'm thinking of using the 4.1" Bore .028" thick gasket. Anything bad I should know about? They'll be going between my aluminum heads and cast iron block.

We've used them on several motors with no problems at all.

They worked fine on mine, too. Didn't even deck the block -

Same here. I'm running them right now. No problems to speak of.

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I ran them on a motor that lived for about 1500 miles. The head gaskets were about the only thing that DIDN"t fail.

Thanks for the replies. I'm going to head down to the GM dealership as soon as I get back into town.

Me, too. I use them as my go-to 350/383 head gasket now instead of the Fel Pros I used to use. It's a lot easier getting a good quench height established with them than with the thicker (.039") Fel Pros.