12 Point 7/16" 8640-8740 Connecting Rod Bolts (16 Pcs) These Speedmaster supercharger manifolds are

These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use

To ensure optimal performance

Best suited for hydraulic or solid flat tappet camshafts

Speedmaster air filter bases are just what you need to build that custom air cleaner assembly

12 Point 7/16" 8640-8740 Connecting Rod Bolts (16 Pcs) These Speedmaster supercharger manifolds areSpeedmaster connecting rod bolts are precision CNC machined to exacting specifications and designed for optimum reliability. They are heat treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior to standard OEM fasteners in terms of durability, and fully capable of handling the extra stress of high combustion engines.