# thermostat housings

**URL:** <https://forums.speedlife.net/t/thermostat-housings/180214>\
**Category:** PittSpeed Automotive\
**Created:** [February 12, 2006, 6:59pm UTC](https://forums.speedlife.net/t/thermostat-housings/180214 "2006-02-12T18:59:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![2003frontier](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/2003frontier/32/5965_2.png) [@2003frontier](https://forums.speedlife.net/u/2003frontier)\
**Post date:** [February 12, 2006, 6:59pm UTC](https://forums.speedlife.net/t/thermostat-housings/180214/1 "2006-02-12T18:59:09Z")

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I bought a new thermostat housing , thermostat and gasket for my s10 with the 350 in it .and i noticed the thermostat housing has a o ring in the bottom of it does this replace the old paper gasket or should i use the paper gasket ? the old thermostat housing didnt have the o ring in the bottom of if,… dunno what to do lol sound funny but ive never seen this before…

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**Author:** ![Sinner6.0L](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sinner6.0l/32/6016_2.png) [@Sinner6.0L](https://forums.speedlife.net/u/Sinner6.0L)\
**Post date:** [February 12, 2006, 7:30pm UTC](https://forums.speedlife.net/t/thermostat-housings/180214/2 "2006-02-12T19:30:40Z")

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You should be able to use just the o-ring, it’s a better design overall than the flat.

Don’t go solely by me 😃 I say this because I’ve seen GM use either one on the same engine.

don’t forget to bleed after your done too

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**Author:** ![bgblockelcamino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bgblockelcamino/32/5997_2.png) [@bgblockelcamino](https://forums.speedlife.net/u/bgblockelcamino)\
**Post date:** [February 12, 2006, 8:22pm UTC](https://forums.speedlife.net/t/thermostat-housings/180214/3 "2006-02-12T20:22:48Z")

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o-ring  
just make sure they didn’t staple the o-ring as that has happened to me

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [February 13, 2006, 4:17am UTC](https://forums.speedlife.net/t/thermostat-housings/180214/4 "2006-02-13T04:17:20Z")

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> [@bgblockelcamino](#):
>
> o-ring  
> just make sure they didn’t staple the o-ring as that has happened to me