Big block brass oil line fitting Repro vs Original

[HawkX66]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SS427</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SgtHawkUSMC</div><div class="ubbcode-body"> The only dead give away that I can see is your doesn't have the 1/64&quot; or so deep circle cut into the top perimeter. </div></div>

I have several real ones in my inventory and not a one has that ring as shown in the first photos. Not sure why the same supplier would change that but mine are definitely different. (original on the left and unmodified repop on the right)</div></div>
Then I guess you nailed it. My original was missing, so I was going off that first pic. Do you sell yours? If not, you should. They look great.
This is all that's really left of my oil line set up besides the valve cover bracket. I need the brass fitting and through the firewall to my console, so I'll probably have to go a/m unless I can find one.

[SS427]

Thanks Dave. Unfortunately after buying the unit and the labor to make it look correct it would run over $100 and I do not know too many people willing to pay that much for a repop so at this point I have only been doing them on customer's cars. So typical of every reproduction part I buy. I have to rework every part to make it more closely resemble an original when it would have been much easier if they just did it right the first time.

[HawkX66]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SS427</div><div class="ubbcode-body">Thanks Dave. Unfortunately after buying the unit and the labor to make it look correct it would run over $100 and I do not know too many people willing to pay that much for a repop so at this point I have only been doing them on customer's cars. So typical of every reproduction part I buy. I have to rework every part to make it more closely resemble an original when it would have been much easier if they just did it right the first time.</div></div>
Makes sense. I've been doing the same thing with the few things I had to buy a/m including my new floor pan. My a/m one didn't come with the rear seatbelt mount plates that are welded on the bottom. I had to transfer my originals over. No attention to details...

[Ls6 Ragtop]

Dave,
Not all of the original fittings have the recess around the outer edge of the hex like the one Rich posted. Here's a few pictures of some NOS fittings and one that I have reworked from a reproduction. I am currently working on making these properly with use of CNC equipment. One of the projects that I am currently doing to make restoring these cars easier.
Chris

[HawkX66]

Nice examples Chris. Thanks. I keep having to remind myself that those are for the 375 hp, not my L34 350 hp 396. I was looking for one of those when my style is actually a little different.
Apparently the 325 &amp; 350 hp big blocks got one that looked like this:

[HawkX66]

I mocked up an aftermarket set up on my extra motor. Here is what the 350hp &amp; 325hp 396ci is supposed to look like as I understand it. It looks like there is another bushing between the block and the fitting in the AIM, but I've never seen one and it doesn't come with the a/m set up.