Eddie is correct, it will have the above piece welded into the valve cover on stock ones, or bolted as an option.
You want them on the PCV opening so oil won't be sucked up into the engine combustion chamber.
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Chris Lucas
1973 Chevy C-10
1978 GMC Jimmy (2WD) - SOLD
1987 R10 twin turbo LS
1991 R3500 SRW CrewCab
1985 K5 diesel swapped project
1989 K5 2WD conversion w/ Vette susp Project
Captkaos Customs
73-87chevytrucks.com
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