Moroso Performance PCV Grommets Features: Works w/Sheet Metal Or Aluminum Valve Covers w/o Logo That Have 1.220 Dia. Holes Ideal For Street Enthusiasts Works w/All Popular GM PCV Valves Made From Oil-Resistant Rubber Height: 1.50 Width: 3.75 Length: 5.00 Weight: 0.10 lbs Fitment: UNIVERSAL 0 - 0 NON APPLICATION SPECIFIC Electrical Outlet Plug Type: Engine Dress Up / Accessories