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**MidLifer** · 09-26-2017, 01:32 PM

I am 1000% sure the seal is in right. I can see the "This Side Out" on the seal.

PCV is embedded in the valve cover like all truck LS engines and is not blocked. Has a vacuum line to the intake, then another line from the TB behind the butterfly to the other valve cover. "Clean and dirty sides" as they say.

09-26-2017, 01:32 PM	#10
MidLifer Senior Member Join Date: Apr 2011 Location: South NJ Posts: 1,263	Re: oil pouring through rear main seal I am 1000% sure the seal is in right. I can see the "This Side Out" on the seal. PCV is embedded in the valve cover like all truck LS engines and is not blocked. Has a vacuum line to the intake, then another line from the TB behind the butterfly to the other valve cover. "Clean and dirty sides" as they say.