GM Turbo 400 TH400 8620 Steel Output Shaft - Standard Length [Mechanical Speedo] Front motor plates swaps the

Front motor plates swaps the vibration associated with traditional motor mounts for solid mounting

Speedmaster automatic transmission deep pans provide additional fluid capacity and cooling ability

Use the stock Quadra-Jet carb or 500-650 cfm vacuum secondary carburetor

Speedmaster finned aluminum valve covers feature a classic raised

and chrome fittings

GM Turbo 400 TH400 8620 Steel Output Shaft - Standard Length [Mechanical Speedo] Front motor plates swaps theSpeedmaster one piece 8620 Steel output shafts are the perfect upgrade to improve the performance of your automatic transmission. These durable output shafts can withstand power level increases in high horsepower vehicles.