SBC Deck Plug Kit
Upper cylinder wall distortion is greatly reduced when these 3/4" NPT plugs are installed in the water passage holes in the decks of Small Block and 90° V6 Chevy engines
Water holes must be tapped before the plugs are screwed in; block must also be decked after installation
Plugs also restrict water flow to the cylinder heads by reducing size of water passage holes to 5/16"
Packaged 6 to a kit
Fits Small Block Chevy and 90° V6 Chevy
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