AMC 360 oiling mod (JunkYard Genious help needed) - Page 2 -
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Unread 11-04-2013, 10:27 AM   #16
Running On Empty...
1973 CJ5 
Join Date: Aug 2007
Location: South West Indiana
Posts: 11,175
ROB, I stumbled onto this thread again, wondered how it turned out?

I use steel braid with a jacket and steel fittings most times since they seem to crack less than brass or aluminum. Make sure the line is rated for petroleum.

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Unread 11-04-2013, 11:41 AM   #17
Web Wheeler
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1981 CJ7 
Join Date: May 2011
Location: Elbert, CO
Posts: 15,629
I went round and round on these oiling mods when I built my 360.

FWIW, the owner of Bulltear, who presumably knows AMC engines as well as anyone, told me the lifter galley bypass mod was a myth. The most common version of the mod involves restricting the flow on the galley that's opposite the bypass, in order to create enough pressure to push oil thru the bypass tube. He said that could create more problems then it eliminates.

I had the bypass mod all set up, albeit in copper . After speaking with Bulltear, I tore it out and plugged the holes. I also abandoned the little timing chain-pisser mod that is recommended in some literature.

In the end, the oiling mods I did were: Open up the main passageway from the pump, gasket match the ports, Gyptol the heads and block, and grind the casting imperfections on the drain holes . My operating pressure is consistently around 50 psi, and 20-25 psi at idle.

bypasstube4.jpg   oilporting7.jpg   oilporting1.jpg   oilporting3.jpg   glyptal2.jpg  

glyptal5.jpg   oildrain1.jpg   oildrain2.jpg  
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Unread 11-04-2013, 12:08 PM   #18
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1984 CJ8 
Join Date: Aug 2005
Location: Floral City, Florida
Posts: 2,447
Sweet-but I still see a leak on the intake

I'll have to open these up on the next 304 build for the Willy's
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Unread 11-04-2013, 05:48 PM   #19
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1982 CJ7 
Join Date: Jun 2010
Location: Marysville, WA
Posts: 5,390
I did not bother to mess with the oil mod when I built my 304. With motors going over 150,000 miles in the stock configuration, I was not going to bother with it. Unless your building a high RPM race engine, don't bother.
Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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