Building a GMC 702 V-12

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 [[File:Modplate.jpg]]
+OK now that I have 3 megs of pics on here.... notice the smaller center circle wear. That is what I picked center from. I did not use the milling machine on the here but rather a dremel and a die grinder. The pressure relief side loos rough but its purpose is to trap oil and promote lubrication. What this modified plate now needs is for an oil feed be supplied. Rather than mod the tube feed that exists some how, this mod actually brings another pipe up from the strainer.
+[[File:welded.jpg]]
+[[File:Titan.jpg]]
+So the first picture is one of the plate with the appropriate sized block that would fit the AN fitting port. Again, I had the Titan lower assembly and I chose to modify that verses machining some sort of chamber with fitting port into the steel block. So picture directly above is the basis. I had to modify that and eliminate one of the side ports as well as the bolt pattern, if you look closely at the picture you can see scribe lines. The Chevy pump pattern did not align with the GMC.
+The ID of the original pick up tube is roughly 9/16" and keeping with that I would have to say that you should seek to maintain a 1/2" ID on your design. I also incorporated a check valve to avoid having the pump drain after shut down. Not sure if this is necessary but Summit had the parts for it.
+As I had a nice AN fitting to attach to that is what I stuck with to get me to the oil pick-up.
+[[File:Parts for pu.jpg]]

Revision as of 18:25, 15 May 2011