CLR to clean out Engine Waterways

Posted by portlandon On 2010/12/3 12:10:31
I have been digging chunks of crud out of the '55 352 while I have it on the engine stand. I popped out all the freeze plugs and the old dried up gunk in there is pretty bad.

I was on a HotRod forum recently and one of those guys mentioned blocking off all the holes in the block and filling it with some CLR and rinsing it out with water. He claimed it would eat up alot of the deposits and help get it all out.

The engine was a runner, and I don't want to take it apart and have it tanked unless I absolutely have to.

Any thoughts on this?

Link to what CLR is HERE

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