freeze plugs

1975 CHEVROLET NOVA
6 CYL • 2WD • AUTOMATIC
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ALFDOUGLAS
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  • 1 POST
Can you please tell me the location of all the freeze plugs on a chevy 250 engine
Feb 7, 2011 at 6:45 PM
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KASEKENNY
  • ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
This engine has 4 freeze plugs under the exhaust manifold.

I assume you need to replace these because you have a leak. If that is the case, I would suggest you pressure test the system in order to confirm this is where the leak is coming from.

https://www.2carpros.com/articles/radiator-pressure-test

Please see the pictures below. The first is of a 250 (4.1L) and the second is a 230 Chevrolet engine. It only has 3 but it is a much better picture.

Please let me know if you need more info. Thanks
Sep 18, 2021 at 6:47 PM
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