ugh!!! replacement 89 5.7 thermostat housing with no HWH outlet

[stang32]

the thermostat housing was rotting away on the inside, i bought a new one
https://www.**********************/...0a23-small-block-v6-v8-thermostat-housing-kit

the old one has a port that the HWH hose goes into. and the new one doesnt. i cant seem to locate one with the port i am thinking about taking it to a machine shop, have them drill and tap a hole. any other thoughts?

 

[stang32]

[No message]

 

[stang32]

https://www.marineengineparts.com/b...0a23-small-block-v6-v8-thermostat-housing-kit

 

[harringtondav]

My '96 4.3 has a pipe plug just below and port of the thermo hsg. It's in the water jacket. I always assumed it was for cabin hot water. Maybe your 5.7 has the same access plug.

 

[stang32]

So i lowered the pressure to under 5psi and no change. Pressure holds. Ive spun the yoke numerous times. I guess im just going to tear it apart and hope i find an issue with the seal/yoke.

 

[Scott Danforth]

So i lowered the pressure to under 5psi and no change. Pressure holds. Ive spun the yoke numerous times. I guess im just going to tear it apart and hope i find an issue with the seal/yoke.

my guess is your now talking about your drive vs the thread on your thermostat housing?

 

[stang32]

lol, yup. i brought the housing to a machine shop were they drilled and tapped a new hole for the fitting. done and done.