Chevy SBC 350 BBC 454 2PC RMS 153 Tooth DNA® Billet Black Oxide SFI Flexplate The impeller and cavity have

The impeller and cavity have been custom CAD designed and engineered to be larger and more efficient to provide flow that is 40 percent greater than stock pumps

The TorqueWorm is a torque bias

They feature cast iron construction and are powdercoated to protect against corrosion

Speedmaster axle stubs are machined from solid billet 4340 material

Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range

Chevy SBC 350 BBC 454 2PC RMS 153 Tooth DNA® Billet Black Oxide SFI Flexplate The impeller and cavity haveSpeedmaster flexplates are the best on the market, made from 4340 round bar to exact tolerances. This one piece billet steel flexplate offers the strongest gear teeth, the least runout, and best longevity on the market. Every Speedmaster flexplate is 29. 2 SFI Approved and will withstand the extreme power and rpm of your performance application.