Allstar Performance 14mm Shock Shim Standard Kit 935171 The reason for spread port

The reason for spread port heads is to achieve additional cooling in the center of the head where the heat concentration is greatest

812 in Thick

The BR8 features an aerodynamic front duckbill

which includes side ports

A small deflector just inside the visor area directs air towards the visor and away from the eyes

Allstar Performance 14mm Shock Shim Standard Kit 935171 The reason for spread portUniquely designed shock shims are placed directly onto the shock shaft to simplify fine tuning of the chassis without disassembling the shock or even removing the shock from the chassis. Kits include a variety of shim designs and sizes for convenient tuning and set up. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket.