Stainless Steel Oil Lines...
I'll be using Stainless Steel lines and Swagelok fittings for the oil and brakes.
I get my fittings from Washington Valve And Fitting in Frederick Maryland.
The fittings I will be using the most will be the 1/8"npt to 5/16" OD tubing so
that is the fitting I'll describe here.

Pulling the Timken's Painting the engine Installing flywheels Assemble the cases Rocker box build up Home		When I worked in research I built gas and fluid handling systems out of these fittings that typical ran at 3000 psi in both static and high vibration environments. I bet my life on them. Here is a cutaway of a standard Swagelok npt to tube fitting. It's made from 304 Stainless Steel and is electro polished. They look great and will last forever.
		A close up off the fitting and how it works. Note the multiple contact points of the ferrules.  Done right these things DO NOT LEAK.
		A size chart for just the straight npt to tube fittings.
		Installation instructions.
		5/16" .035 wall seamless stainless steel tubing. I'll may be using this stuff for the oil lines but I'm also leaning toward copper.
		Three size tubing bender.
		Just like the old days...when I did this for a living. These should give me many years of service.
		Here's the Swagelok fittings on the new oil pump cover.