Aussiespeed Tunnel ram base and Supercharger top mounting plate this top can be adapted to suit most superchargers designed around a GM 71 series other superchargers can be fitted with additional machining. Supplied with 2 gaskets and 4 mounting bolts it is recommended the top and bottom be welded as the amount of force from a supercharger requires a very strong mounting point to the tunnel ram base..
The under side of the AS0290 supercharger tunnel ram base plate
Aussiespeed AS0290 GM 71 seres tunnel ram plate fitted to a 2V Cleveland Aussiespeed tunnel ram, over all height from the bottom of the base to the supercharger bolt down surface is 223mm
Holden 253/308 tunnel ram fitted with Aussie speed AS0290 supercharger adapter the adapter has a centrally located backfire valve fitted to the manifold.
WILL NOT WORK WITH MSD8580 or MSD8350 distributors as they are to tall and to large in diameter. Can only be used with Bosch or ICE short distributors.