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Used to be primo, but sideswiped a friends suspension bridge (slippery wood planks) a few years ago - had a body shop pull the mess back out for $800 (did an excellent job), but then they wanted another $800 to repaint and I didn't want to drop any more into it for cosmetics. So now one side is primer gray - wished they woulda used white -- wished I woulda thought to ask! Also blew out an intake gasket when it vapor locked a couple of years ago - turns out this model year used a 307 Olds 5 liter V8. Replacing the gasket is quite a chore as it is one big gasket for the intake manifold PLUS both valve covers - genius I tells ya. Now it's blowing oil somewhere, but not through the rings. It's not blowing blue smoke and there's not a puddle on my garage floor, but have to add a quart every 300 miles or so. Auto tranny also starting to slip a bit. Just want to get 100k out of it and then will scrap it.
The intake and valve cover gaskets are separate pieces. What you're referring to is the intake gasket is a valley pan style, much like a Pontiac intake gasket. The gasket covers the valley of the engine and the intake ports of both cylinder heads at the same time. It's a one piece tin pile of dog poo if you ask me.
The real problem on the Olds 307 intake was they were aluminum, and between the iron heads, tin gasket and aluminum intake the dissimilar metals (along with old coolant) would attack each other and eat the intake up. GM's fix was to replace the intake with a cast iron one.