So you want to use 16AN rad hoses? No problem, use K-Tuned's 16AN adapter fitting in conjunction with a K-tuned Swivel Neck T-stat to easily convert your rad hoses to 16AN. The fitting is ready to install, complete with o-ring on the port side.

Sold individually. Silver finish.
Swivel T-stat neck sold separately.

Note: a modified aluminum radiator with welded 16AN bung will need to be made for this setup.