Quote:
Originally Posted by MiraclePieCo
I use these, specifically made for blocking off heater hoses. Five-minute installation, no danger of cracking a manifold trying to remove hose bungs, and you can always reinstall your heater hose later if you choose. They're available at any auto parts store.
https://www.ebay.com/itm/Fits-Chevy-...-/371601356895
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I used the same things but need to keep an eye on them. The heat dries them out and they will start seeping and eventually fail.