Originally Posted by Hotrod Lincoln
Look at the size of those oil line fittings- - - - - -it's possible you've got a 261 there.
Jerry

I agree.
And if you don't have a full flow engine, or one someone converted to full flow, then that line is probably extra and may actually hurt oil pressure.

If it is a full flow engine might want to use an oil filter.

If it is only replacing a bypass type filter then you'd be better off with it plugged.. If it only dumps good oil pressure back to the pan then do away with it, or install a bypass filter which will have the proper restriction and not waste to much good oil pressure..

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-