Originally Posted by James S
Does the inlet line from the top of the oil filter fasten to the tee fitting that has the oil pressure gauge line?

Originally Posted by Hotrod Lincoln
Yes, the correct direction of flow puts the oil from the same port that supplies the pressure gauge to the middle of the side of the filter canister, and the return to the crankcase comes out of the bottom fitting. The 1/16" diameter hole in the standpipe controls the flow, so theoretically, the lines could be connected either way and the filter would still work.
Jerry

Not on the stock GMC engine, which is what James has. Oil to the filter is supplied from a fitting on the front of the block. Oil returning from the filter enters the block near the base of the distributor.

James: Where do you plan to have your return oil line connect?

If James is planning to hang his filter on the intake manifold like a Chevy I'll back out of the conversation.

Last edited by Bill Hanlon; 11/11/2022 3:52 AM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.