GM 4L80 Transmission Billet Aluminum Full Manual Valve Body - Black Speedmaster rocker arm adjusting nuts

Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms

you must use one that is also approved as street legal for your application

These aluminum push-in breathers from Speedmaster are just the thing to prevent oil splash while adding some style

Speedmaster axle bearing designed for use with OEM or aftermarket brake rotors

and performance

GM 4L80 Transmission Billet Aluminum Full Manual Valve Body - Black Speedmaster rocker arm adjusting nutsSpeedmaster billet aluminum valve bodies are a direct replacement for your original valve body. These valve bodies shift quickly and incorporate an adjustable pressure regulator. Fully 5 axis CNC machined from billet aluminum, these valve bodies will help your project shed some weight.