LS Valve cover barb size???

Rockrz · 07-17-2022, 05:44 PM

I'm wanting to get a quick dis-connect for my oil catch can line to connect to me driver's side valve cover (2009 Chevy 5.3L LS engine)

But, I'm not exactly sure what quick dis-connect connector to buy or where to buy it.

The first step should be knowing what size the barb is located on the rear of the valve cover

If anybody know what size this barb is, and what quick dis-connect connector to buy, please let me know.

It looks kinda like 3/8 to me but it may be metric sizing.

1JEWLDSSRS · 07-18-2022, 09:27 AM

Try asking in here. A lot of knowledge in here.

https://www.camaro5.com/forums/forumdisplay.php?f=11

gtstorey · 07-18-2022, 10:07 AM

I think almost all of these for GM are 3/8. I know they are on ecotec motors. You have to be careful of what style you get since there isn't a lot of room on the valve cover side of the connector. The screw in retainer type likely won't work. You need the clip on style that has "windows" in the sides to be able to disconnect it. Something like this;
https://www.ebay.com/itm/13122379893...4AAOxymmJTkhAx

I got some that didn't have the windows in the side and had to drill holes to be able to push the release clips.

Rockrz · 07-18-2022, 11:51 AM

I ordered one very similar to this... but these may not be deep enough.

I'll know for sure one it arrives.

Nb1081 · 07-18-2022, 06:13 PM

You can just remove that tap it and put a an fitting in

Rockrz · 07-18-2022, 07:35 PM

The bung on my valve cover appears to be pressed in so I'd have to remove the valve cover, drill it out and then install the fitting I'd like to have.

I wasn't interested in working this hard on this as I can always just use a 3/8 hose and worm clamp.

I was just exploring what was available by way of quick dis-connects

07-17-2022, 05:44 PM	#1
Rockrz Drives: 2009 Camaro Join Date: Jul 2022 Location: Kansas City Posts: 3	LS Valve cover barb size??? I'm wanting to get a quick dis-connect for my oil catch can line to connect to me driver's side valve cover (2009 Chevy 5.3L LS engine) But, I'm not exactly sure what quick dis-connect connector to buy or where to buy it. The first step should be knowing what size the barb is located on the rear of the valve cover If anybody know what size this barb is, and what quick dis-connect connector to buy, please let me know. It looks kinda like 3/8 to me but it may be metric sizing.

07-18-2022, 09:27 AM	#2
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,402	Try asking in here. A lot of knowledge in here. https://www.camaro5.com/forums/forumdisplay.php?f=11 __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

07-18-2022, 06:13 PM	#5
Nb1081 Drives: 10 2ss/rs Join Date: Jul 2018 Location: Shelby ny Posts: 436	You can just remove that tap it and put a an fitting in __________________ [/SIGPIC]10 2ss ls3 sw long tubes,cai intake,phastek scoop,se3" exhaust,elite e2, bw stg2tb, tsp f35, motive 4.10 lpw cover, 15" conversion, 510whp tuned by john donovan

07-18-2022, 10:07 AM	#3
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,143	I think almost all of these for GM are 3/8. I know they are on ecotec motors. You have to be careful of what style you get since there isn't a lot of room on the valve cover side of the connector. The screw in retainer type likely won't work. You need the clip on style that has "windows" in the sides to be able to disconnect it. Something like this; https://www.ebay.com/itm/13122379893...4AAOxymmJTkhAx I got some that didn't have the windows in the side and had to drill holes to be able to push the release clips.

07-18-2022, 11:51 AM	#4
Rockrz Drives: 2009 Camaro Join Date: Jul 2022 Location: Kansas City Posts: 3	I ordered one very similar to this... but these may not be deep enough. I'll know for sure one it arrives.

07-18-2022, 07:35 PM	#6
Rockrz Drives: 2009 Camaro Join Date: Jul 2022 Location: Kansas City Posts: 3	The bung on my valve cover appears to be pressed in so I'd have to remove the valve cover, drill it out and then install the fitting I'd like to have. I wasn't interested in working this hard on this as I can always just use a 3/8 hose and worm clamp. I was just exploring what was available by way of quick dis-connects