1977 Small Block: Engine block antifreeze drain plugs location
 

Trying to locate the engine block drain plugs to drain the anti-freeze out. Can anyone help me locate exactly where they are? Are they easily accessable or (like almost all other jobs on this car) do I need to remove a million things to access it?

Any help on accessing and finding these drain plugs would be greatly appreciated :)

-D

There's one on each side, in the middle near the bottom of the block. They should be a 1/4" NPT plug.

I guess you've never worked on a newer car. :willy:

Deleted

He may not remember, it was 8 years ago.

No shit....I accidentally posted on it...and then so did another after a “bumped” it....

Jebby

Tried that....did not work.
Maybe it is my browser.

Jebby

hit edit. then delete. then there is a checkbox set at do not delete. set it to delete. it worked for my post. i will come back and delete this tonight.

There's nothing wrong with keeping a useful post like this alive. This was the first hit on Google when I searched for this topic.

I was able to get the drain plugs out of my 80 L48. There was no gunk behind them, just slightly rusty antifreeze. The plugs were the original steel, which I will replace with brass.

Here are pictures of the locations to help someone searching for this information in 2027. Both plugs were easy to get to, with the exhaust out of the way. Just be sure to have a bucket ready, the water will shoot out further than you expect both times.

https://cimg2.ibsrv.net/gimg/www.cor...fa47b99e21.jpg
https://cimg3.ibsrv.net/gimg/www.cor...206c6aadc3.jpg
https://cimg7.ibsrv.net/gimg/www.cor...dc1bd5a9c2.jpg