Oldsmobile 400 425 455 2PC RMS 166 Tooth DNA® Billet Black Oxide SFI Flexplate Their strong die-cast aluminum design

Their strong die-cast aluminum design ensures an excellent gasket seal and dissipates heat better than many other covers

Don't trust any old brackets to hold your alternator

You cannot over-shift and miss a gear with Speedmaster automatic shifter

Compatible with: PCE

they won't eat up race-winning horsepower

Oldsmobile 400 425 455 2PC RMS 166 Tooth DNA® Billet Black Oxide SFI Flexplate Their strong die-cast aluminum designSpeedmaster 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.