what is this

The cooling fluid cap

>>16644050
are you sure

>>16643999
Valve cover breather.

Crank case breather

>>16644336
it's an oil cap

Oil pan breather

>>16644383
why does the valve cover need to breathe

>>16644462
It's called Positive Crankcase Ventillation, y'know, PCV.

Air goes in ones side through the pictured filter, picks up combustion vapors that would otherwise gas out the oil and make you need 1.5 kilomile oil changes, and gets sucked through the other valvecover.

>>16643999
Waste of trips faggot it's a fucking crank case breather. You motherfuckers are ruining all the decent cars for the rest of us. I was under the impression that the small block 350 was easily the best known engine on the planet. I guess i was wrong. Read a fucking book, you turbonigger

>>16644945
>getting this pissed about your retarded digits
>calls ME a nigger
blacky get out

Ballast fill cap.

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>>16643999
A 2.05mb png

File: IMG_1810.png (56KB, 192x154px) Image search: [Google]

56KB, 192x154px

>>16645167
fuck. you got me. kek