Moroso SB Chevy Deck Plug Kit - SB and 90 V6 Chevy Head & Neck Restraints The alloy steel ball studs

The alloy steel ball studs are process coated for low friction and long wear

only 3/16 in

Track Hawk

2016-2020 Mazda CX-9

Moroso SB Chevy Deck Plug Kit - SB and 90 V6 Chevy Head & Neck Restraints The alloy steel ball studsUpper 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 Moroso Performance Products is one of the worlds most