Offshoreonly.com - Thermostat

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gripit

11-08-2008 06:04 PM

Thermostat

Whats the difference between a Sierra, Merc, & Hardin Marine High Performance Thermostat (140F) ? Also would drilling three holes it it make it High Performance.

Thanks

t500hps

11-08-2008 06:13 PM

IMO: If it has Sierra stamped on it...it's JUNK!!!

Payton

11-09-2008 06:49 AM

The holes are only drilled to keep the exhaust manifolds cooler untill the thermostat opens if the is no other bypass setup No more or less performance.

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