badazz68stang

i recently replaced the thermostat in my 289 and today after idling for 10 mins. or so the radiator hose became extremely hot as well as the top of the radiator. and i mean HOT
any ideas?

Soaring

The first thing that came to my mind is that you put the thermostat in upside down. The longest part goes down. Here is a pic.

67t5ponycoupe

Yup, that sounds like the problem. Did you look at your gauge?

nualln

Theyre supposed to be hot. Dont touch them.

What did your temp gauge say?

badazz68stang

temp gauge stayed at almost halfway (not quite)
maybe its just me worryin too much and yea, i kno they are supposed to be pretty hot.

and so the side witht the curve goes toward the radiator and the flat side goes to the intake manifold correct

67t5ponycoupe

Just like in the picture above