macktruck907
New member
What is the port for on the side of my 392? I plugged it but it had a nipple on it like it was suppose to go some where. Please help.
cooling port on block??
- Thread starter macktruck907
- Start date
Robert Kenney
Super Moderator
There are quite a few threaded ports on the side of the block.
The 1/8 npt ports access the main oil gallery. They are cross drilling points that feed the main bearings. These are right above the pan rail on the oil filter side of the block. Some applications tapped in to these to supply oil to an accessory (compressor for air brakes).
The 1/4 npt ports (one on each side) is to drain the last of the water from the block. It usually has rusty crud in it...
They can all be plugged up other than for the oil pressure sender/switch.
The 1/8 npt ports access the main oil gallery. They are cross drilling points that feed the main bearings. These are right above the pan rail on the oil filter side of the block. Some applications tapped in to these to supply oil to an accessory (compressor for air brakes).
The 1/4 npt ports (one on each side) is to drain the last of the water from the block. It usually has rusty crud in it...
They can all be plugged up other than for the oil pressure sender/switch.
macktruck907
New member
Ok great! Thanks a bunch.