Michael Yount

iTrader: (1)

I need the shorter sump of the Holley pan to clear my crossmember (new LS3 in an 82 Volvo). Looking at the factory pan, there is a fitting of some type -- hex with an orifice in the top of it -- that attaches above the oil filter casting, just inside the oil filter/oil cooler passages. No provision for that on the Holley. Educate me - what is that factory fitting's purpose?

stevieturbo

My old FBody pan didnt have such a thing

ls1nova71

iTrader: (4)

Looks like a pressure relief valve of some sort, may be used for different things on different engines, such as DOD applications. If you have an LS3 and not an L99 or something, you shouldn't need it.

Michael Yount

iTrader: (1)

Better picture - occurs to me it might be a relief valve of some sort for a clogged filter perhaps...

Michael Yount

iTrader: (1)

Ah - great minds posting at the same time....LOL. Yes - new LS3 (from first line in post).