HPOP X-Over Fittings

[southern7.3]

Anyone know the size of the fitting that plug into the oil plugs on the heads for the cross over line. The napa guy ordered the wrong ones. The part that screws into the head is way to small. Now I have a $40 dollar piece of hose sitting around. Thanks

[4fingers]

iirc its a -5 o-ring fitting

[southern7.3]

Preciate it

[MrJohnWayne]

-5 SAE. Very uncommon fitting.

[southern7.3]

I had to special order them from napa. That is the correct size that will plug into the head? I thought that is what I got last time and it was to small coulda been order man error

[md18]

What type of ends are on the hose you had made? Are they a JIC?
I used a Weatherhead C5315X4X5 on my truck, that converts the ports in the head to a 1/4" (-4) Male JIC fitting. My X-over hose is made from 1/4" hose with -4 JIC ends on it.
You could make it out of 5/16 Hose and use the bigger -5 JIC ends on it, but i thought it was probably overkill as the feed lines are only 1/4" and that bigger hose would be harder to work with in the tight place it has to go, and I had some 1/4" hose in stock anyways.
Here are the NAPA part numbers you need
-5ORB to -4 JIC: C5315X4X5
OR
-5ORB to -5 JIC: C5315X5

And yes, that means that the ports in the head are indeed a -5 O-Ring Boss Fitting