John D,

While I don't have an answer to your question on which "thermostat" to use, here is a link to help with your heater hose routing and connections question.

Am sure that others will chime in here to discuss and try to help on your thermostat question soon.

Dan wave


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)