REGAL Turbo LS oil pan mods

BuickBroke$

BuickBroke$

Apprentice
Aug 4, 2018
74
18
Vancouver WA
Building an ‘85 Regal 5.3 with passenger side turbo. Just picked up a Holley 302-2 oil pan and wondering if anyone has used one of them on their turbo build? Looking for info on what I need to do to make it turbo ready. I know it needs a drain, but where’s the best place for it, and what does it consist of? Also, where does the oil come from that goes to the turbo? Thanks, 1st turbo build...
 
C

cdunson79

Apprentice
Nov 12, 2018
54
18
The 302-3 pan has drains already in the sides but on my build (82 elco with hooker mounts) these where too close the crossmember to use so i had fittings welded on just a few inches back. (twins).
 
8

81cutlass

Royal Smart Person
Feb 16, 2009
2,065
113
Western MN
Most people pull turbo oil supply off the oil filter/cooler supply cover on the drivers rear side of the pan above the oil filter.

The 302-3 has drains in the pan but holley themselves admitted its for fox bodies with a tubular k member so its a no go as mentioned.

A common place to put the drain if you aren't running AC is to drill/tap the timing cover near the passenger side bottom above the pan bolt flange. Otherwise somewhere in the side of the pan behind the crossmember works.
 
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BuickBroke$

BuickBroke$

Apprentice
Aug 4, 2018
74
18
Vancouver WA
Ok, thanks guys. Anyone have any pics? I’ve not welded on aluminum before so I think I’ll try it out on my stock truck pan. And yes, I plan on keeping the ac.
 
8

81cutlass

Royal Smart Person
Feb 16, 2009
2,065
113
Western MN
You can do something like a -8 ORB (o-ring boss) straight fitting and avoid welding or no NPT thread on one end and a JIC 37 degree flare on the other.
 
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Anubis

Anubis

Royal Smart Person
Mar 30, 2012
1,889
113
I'm using the stock truck oil pan in my Z71 swap. I plan to use the feed located on the oil filter adapter. I added a 10 AN drain fitting to the front of the pan on the passenger side.
Remember that size is important! The turbo oil drain should be big and allow for gravity return or you may have issues with turbo seals and smoke.
 
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