Compact distribution blocks were designed to assist in intake plumbing where space is very constrained.
These blocks are .69″ wide, and 1.4″ deep with a 3AN bulkhead fitting on the inlet.
The 4 outlets are 5/16-24 thread and the inlet is 3AN.
for AN outlet fittings use NX Part 16150
for compression outlet fittings use NX Part 16149