C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Possible intake gasket blown?

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Old Jun 1, 2024 | 04:29 PM
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Vogelj2
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Default Possible intake gasket blown?

Alright this is my third post after just trying to do fuel injectors but realizing my car might be a piece of junk.

I have an ‘86 and I’ve been reading on intake gasket problems as I found a small amount of coolant around the back of the intake and around some bolts while doing fuel injectors, so I tightened the bolts and thought nothing of it.

I got the injectors all in and all is put together and I start it, there was a heavy knock, smoke out the exhaust, and coolant pouring out the exhaust tips.

Given the sign of a bad intake gasket, am I good to assume that it’s that and not head gaskets, as the intake gasket is also a common issue on these? My oil looks like it did when I changed it 1500 miles ago. Also, the more important question, as I didn’t run it long with the knock, could fixing the gasket (or gaskets) get rid of the coolant in the combustion chamber and thus getting rid of the knock? Thanks!
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