Part # 54537800
Moroso 37800 Chevy Block Deck Plug Kit
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Chevy Small Block V8
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Reduce upper cylinder wall distortion by installing 3/4" NPT plugs in deck water passage holes of S/B Chevy V8 and 90° V6 Chevys. Machining necessary after installation. Makes water passage holes 5/16".
- Reduces upper cylinder wall distortion
- 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"