Valve Covers Holden V8 253-308 Red, Blue + Black Motor 308 Logo Embossed with 1 hole 1-1/4" for Breather or Pcv. Tall Height will suit most Roller Rockers. Internal Height 65mm. Sold as a pair. Chromed Steel Baffled. Grommet Kit to suit comprising 1 Pcv and 1 Oil Cap Grommet, is our Part No 66-520. Most Oil Caps with 1" Neck will fit such as our Part No's 66-012 and 66-013 Dome Style or 66-001, 66-002, 66-003, 66-044 Pleated Filter Style . Use Reusable Valve Cover Gasket MAG308G.Please check there is enough clearance room when fitting, as brake power boosters can be close to valve covers on some commodores. Will not fit valve covers with stud girdles fitted.