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LS short box · 08-12-2020, 04:40 PM

I just looked again and there is what looks like plug on the back of both heads that's about 3/4" in diameter. It sticks out maybe 1/16" from the head. Not like a typical soft plug but something that was done at the foundry as maybe casting vent? It has some type of sealant around the plug. And there is a similar plug on the back of the engine block on the upper right side but inside the bell housing.

08-12-2020, 04:40 PM	#7
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,927	Re: Coolant leak????? I just looked again and there is what looks like plug on the back of both heads that's about 3/4" in diameter. It sticks out maybe 1/16" from the head. Not like a typical soft plug but something that was done at the foundry as maybe casting vent? It has some type of sealant around the plug. And there is a similar plug on the back of the engine block on the upper right side but inside the bell housing.