Toddman0025

The only thermostat NPD carries for a 351c is a 192 degree model - is that recommended?

Soaring

No, the 180 is what is used, and can be bought at any parts store.

Mustang Boy

yea go to a parts store theyre like 2 bucks plus tax

baddog671

Ive heard there is some controversy between the 160/180. Whats your opinion Soaring?

rmodel65

u dont wana go to cold 160 is pusihing it it might hurt power(could keep the parts from reaching operating power) and the 180 is about right not to hot not to cold the hotter u go the better gasmileage u get but u also lose some power

Colorado_Mustang

180* is good for most classics. 160* is something you only want to use in an engine that's built to run that cold. 192* is generally better for emissions/economy.

Toddman0025

Checked the local parts store - they have 180 degree thermostats, but they list them as "Race Only"


Why is that?

Colorado_Mustang

That'd be that emissions thing.

Soaring

The classic engines were designed to operate best at 190-200 or so. The 180 starts opening at 180, and is fully open at 200.

Toddman0025

Are thermostats for Windsor and Cleveland engines interchangable?