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  1. #1
    Jr. Apprentice
    Join Date
    Jan 2011
    Havre de Grace, Maryland, United States

    Default thermostat replacement

    How easy is it to replace the thermostat? Also, how do I tell which temp my engine is designed to operate at, so I know which thermostat to put in it?

  2. #2


    Thermostats are easy to replace. Essentially 2 bolts, pull out the old one, scrape the intake and outlet, drop the new one in, spread a little silicone, and re bolt it. Allow it to sit for a while to allow the silicone to dry, and you're good to go!

    If you're just going to be replacing it, any autoparts store will be able to pull up the exact replacement off the computer. If you're modifying it, keep asking around for others input.

    Good luck!

    1991 Suburban

  3. #3


    I'd go with a 195 thermostat.

    1996 GMC Suburban K 1500 "The Love Boat"
    Magnaflow cats
    Flowmaster catback exhaust
    BFG 285/75/16 on stock 16's
    K&N with Cold Redneck Air Intake
    Monroe Reflex Shocks
    A whole bunch of new stuff -with-
    more to come

  4. #4
    murdog94's Avatar
    Join Date
    Feb 2008
    Cloquet, Minnesota, United States
    Blog Entries


    Year, make, model would help some since the ease of replacing does have a factor.
    On the new vortec motors 1996 to present there is an o-ring instead of a gasket so it takes less than 5 min to do the entire project. Older than 95 you have to replace the gasket and scrape etc..
    all of the 350 V-8s from 1988 up took a 195degree t-stat, as well as the 4.3L 4.6L and 5.3L as well as the 6.0L


    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

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