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Moroso 37800 - Plug Kit, Deck, Chevy

Since 1968, Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications!

Water Pump Block Off And Filler Neck Kit
Deck Plug Kit
Wall Distortion Reduced
Restrict Water Flow to Cylinder Heads
Availability: Will be special ordered for you.
Pricing: $21.99


• 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

California Prop 65WARNING: Cancer & Reproductive Harm -


  • 37800
  • 37800
  • 084663378003
  • Moroso
  • Will be special ordered for you.
  • New

Shipping Information

  • Item Requires Shipping
  • 0.6 lbs.
  • W5.4370” x H1.1250” x L7.1870”

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California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -