Moroso Chevrolet Deck Plug Kit - 37800

Features

• Upper cylinder wall distortion is greatly reduced when these 3/4" N.P.T. 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 six to a kit