Aussiespeed® Holden V8 253, 308 high rise tunnel ram supercharger intake manifold.
The Aussiespeed® Holden V8 tunnel ram style super charger manifold suits red, black and blue motor cylinder heads.
Some extra drilling will be required to suit the 3 different styles of Holden 253 and 308 red, black and blue motor cylinder heads. The centre valley cover holes are part drilled.
This Aussiespeed® Holden V8 Tunnel Ram manifold includes supercharger top plate this is a solid Australian made and machined casting to suit 6/71 superchargers.
THE TUNNEL RAM BASE IS 150mm high from the top to the bottom of the manifold sitting flat on a bench plus the top.
The package is supplied with the tunnel ram base, AS0290 supercharger top plate fitted with a backfire valve, 2 top to base gaskets and 4 mounting bolts.
Due to the forces involved on supercharged engines it is highly recommended that the top and bottom be welded together rather than just relying on the 4 mounting bolts.