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Old 07-12-2020, 06:20 PM   #8
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ChuckD's Avatar
Join Date: Aug 2019
Location: Johnson City, TN
Posts: 13
Default Re: Block drain for 8RT

Originally Posted by Alaska Jim View Post
As Ronnie stated, there is a good flat spot on both sides of the block at the front. I drilled and tapped both sides and installed drain cocks for the eng. in my 51 merc., and the eng. for my 29 roadster project. I did this so I did not have to remove hoses to drain cooling system, in case cooling system maintenance. ( heater hoses, heater control valve, t-stats, even head gaskets.) I did it mostly to be able to completely drain and change out the anti-freeze every couple of years. I will say that it is best done with the eng out of the vehicle. may not be possible in the vehicle
Why can't you drill the radiator and braise a nut for a petcock. Isn't that how radiators are tapped? Where "exactly" is the best place to drill and tap the block? I have a '50 8CM and would like to see a photo or an 8BA photo.
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