Just finished a GMC 228 oil line redo.
The stock 3 way fitting out of the front block in my case made for an interesting project. This three way goes to the head oiling , oil filter and pressure gauge.
The thread mix, fitting mix and transions in sizing in the stock pipe and then the vibration isolation rubber lines makes it challenging.
There are inverted flare fittings and transition fitting to rubber lines in the stock setup that are no longer available. I used a cobination of brake line, a rubber line and flare to get the job done. The filter threaded fitting themselves were different on the GMC from the Chev.
Found a same transition problem on the oil pressure gauge line at the fire wall. Stock is 3/16" pipe to an inverted flare to rubber line to 1/8" line to the gauge. Replaced with vibration loop with compression fittings and a coupling with 3/16" to 1/8".
[URL=http://s398.photobucket.com/user/showkey_bucket/media/image_zps00cd12uv.jpeg.html]pic of filter oil line[/url]
Last edited by showkey; 05/25/2016 1:59 PM.
