6-71 to 14-71 12Pt 2.50" Aluminum Blower Supercharger Break Away Stud Kit The mid-size cross section works

The mid-size cross section works well on engines under 540cu

Speedmaster aluminum starter spacer plate to fit starter to a Manual type engine

and they may be reduced to fit if you decide to narrow your rear-end later on

Upgrade your GM Powerglide or TH400 for extreme horsepower applications with this big shaft stator tube kit

6-71 to 14-71 12Pt 2.50" Aluminum Blower Supercharger Break Away Stud Kit The mid-size cross section worksThese 7 16 in. anodized aluminum studs from Speedmaster allow your blower and manifold to separate during a blower explosion to minimize engine damage. These kits also include 12 point, aerospace quality nuts and parallel, ground hardened washers.