Holden tall alloy rocker covers fit V8 253, 308 B cast cylinder heads, plenty of room for roller rockers, large valve springs, stud girdles. As with most Aussiespeed rocker covers these also have cast in funnel style oil breathers so no nasty screws rivets or tin plates to contend with.Aussiespeed Holden V8 rocker covers to suit B cast cylinder heads, B cast heads are fitted to Holden v8 253,308,4.2 & 5 litre engines produced before the later VN heads.
The Aussiespeed covers also have a cast in drip lip that fits inside the cylinder head casting to help stop the gasket slipping in & help stop oil leaks. These rocker covers are a black powder coated finish with satin polished fins. Supplied with a pcv and oil cap breather grommet. The covers are 90mm tall on the inside. std factory tin covers are 76mm inside. we have bolts and breather caps with matching fin styles also available in our online speed shop