Correct T-Stat for Merc 260 (350 chevy)

Fordiesel69

Lieutenant Junior Grade
Joined
Sep 18, 2009
Messages
1,146
It is a 1980 mercruiser 260HP 350. It has a 195 in it now and i think it is wrong. Owner said this engine needed higher temp to keep sludge minimal, is this true?
 

Fordiesel69

Lieutenant Junior Grade
Joined
Sep 18, 2009
Messages
1,146
Re: Correct T-Stat for Merc 260 (350 chevy)

Would going to a fuel injected 160 degree stat help or hurt anything. A guy told me I may pickup some fuel economy, but others say the oil can not last quite as long. Any suggestions?
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: Correct T-Stat for Merc 260 (350 chevy)

Just put the correct one in it and be comforted by the fact that they run thousands of hours as designed.
 
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