Which thermostat housing

[ace1]

What thermostat housing is being used with a double pass radiator for sbc. Are the swivel types any good. I was told may be one from a 6 cyl. that is turned to passenger side that will work.

[usafracer]

I use the swivel as well.

[ace1]

Any preference of one brand over the other.

[Chris Steele]

I use one off of an old 6-cyl chevy engine...same bolt pattern as V8 chevy water neck, but turns the other direction for double pass radiator. Never been a fan of those swivel necks that just look like they are waiting to leak.

[stockcar5]

Swivel here as well. Never had a leak. They seem much thicker and stronger than stock style ones.