GM Turbo 400 Th400 Automatic Transmission Tailhousing to Powerglide Case Adapter even under the toughest of

even under the toughest of circumstances

Let everyone know you take high performance seriously by flying the Speedmaster name and colors on a Speedmaster Flag

Speedmasterª & FAST line of EFI systems are all you need when deciding to upgrade your engine to modern electronic fuel injection

They come in tall and short models

forged from mild steel for ease of welding then fully machined on CNC equipment

GM Turbo 400 Th400 Automatic Transmission Tailhousing to Powerglide Case Adapter even under the toughest ofSpeedmaster aluminum adapter spacers allow you to adapt Powerglide to Turbo TH400 automatic transmission tailhousing. Adapts Turbo 400 rear housing to Powerglide Case