Billet Valve Covers Threaded oil cap and Stock Fill Tube?
02-14-2014, 06:52 PM
#1
Billet Valve Covers Threaded oil cap and Stock Fill Tube? So I recently purchased a set of Moroso valve covers for my ls1 heads which come with a threaded oil filler cap. I need to put a stock filler neck on it because I want to run a specific breather from RX Performance that I have (1LE)
That being said is there an adapter that will allow me to connect the stock valve cover oil filler neck to the threaded hole in the moroso valve covers?
Please let me know. I have attached some pics of the covers, the filler neck.
Thanks!
That being said is there an adapter that will allow me to connect the stock valve cover oil filler neck to the threaded hole in the moroso valve covers?
Please let me know. I have attached some pics of the covers, the filler neck.
Thanks!
02-15-2014, 09:29 AM
#5
Do you have to use the stock breather? Why not a K&N type? I have Crane Cams billet covers and had the same issue. Used a water neck fitting that screwed right in and slipped the breather over it. Clean too....
http://www.meziere.com/displaycatego...id=244,315,307
Double check your thread size....believe mine is -16. I don't use it anymore as I now run (2) -10 lines to a catch can. Be glad to give ya deal on it if works.....
http://www.meziere.com/displaycatego...id=244,315,307
Double check your thread size....believe mine is -16. I don't use it anymore as I now run (2) -10 lines to a catch can. Be glad to give ya deal on it if works.....
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02-15-2014, 11:44 AM
#10
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02-15-2014, 04:22 PM
#11
Ok here are the pics to use this its attached to the old oil cap which fits in the stock filler neck. If you look at the threads it doesnt fit in the fabbed valve covers of course.
so my question is, is there an adapter or something to make this work?
02-15-2014, 05:47 PM
#13
Alright, back on topic:
I don't think anybody makes a specific part to do what you want, you'll need to fab something up.
LPE above seems to think it's an AN thread. Makes sense for Moroso to use an AN bung. If so, just get a O-ring sealed AN adapter. Moroso should be able to tell you the size.
I don't think anybody makes a specific part to do what you want, you'll need to fab something up.
LPE above seems to think it's an AN thread. Makes sense for Moroso to use an AN bung. If so, just get a O-ring sealed AN adapter. Moroso should be able to tell you the size.
02-15-2014, 07:32 PM
#16
Already got it. Since one side connects direct to the 1LE above by swapping that I would have an AN fitting in its place. The opposite end connect to air inlet tube.
So I would assume by demoing 1LE it would just be a straight line no check valve at that point.
Would that cause an issue?
So I would assume by demoing 1LE it would just be a straight line no check valve at that point.
Would that cause an issue?
02-15-2014, 09:29 PM
#19
Nope...Kinsler....first one in an fbody. One off piece to fit my Mast Inline's....gotta feed 460" on the street somehow 
What's the OD of that filler neck....has an o-ring too, yes? I'm thinking if you can find a "neck" that will thread into your cover and have the right ID , you might be able push the breather into the neck. Just pray you don't have any crankcase pressure.....
What's the OD of that filler neck....has an o-ring too, yes? I'm thinking if you can find a "neck" that will thread into your cover and have the right ID , you might be able push the breather into the neck. Just pray you don't have any crankcase pressure.....
02-15-2014, 09:44 PM
#20
Patsy, it looks like that 1LE breather is somehow attached to a stock style oil fill cap. As the cap always stops at the same spot when twisted in, they can affix the breather to the cap. It's indexed.
To get that breather on a threaded cap, you'll need to also get it indexed so the breather is pointed correctly with the cap all the way in.
Your next problem? The stock cap goes onto the extension. Without that, the breather on your threaded cap may hit stuff as you twist the cap onto the valve cover. You may need to space the breather away from the threaded cap.
To get that breather on a threaded cap, you'll need to also get it indexed so the breather is pointed correctly with the cap all the way in.
Your next problem? The stock cap goes onto the extension. Without that, the breather on your threaded cap may hit stuff as you twist the cap onto the valve cover. You may need to space the breather away from the threaded cap.