Water Pump Block Off And Filler Neck Kit; Deck Plug Kit; Wall Distortion Reduced; Restrict Water Flow to Cylinder Heads;
- 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 six to a kit
California Proposition 65 Warning: Cancer and reproductive harm. See www.P65Warnings.ca.gov.