Oldsmobile 400 425 455 2PC RMS 166 Tooth DNA® Billet Black Oxide SFI Flexplate although slightly taller

although slightly taller

Their precision construction ensures a leak-proof seal and lasting durability

These can be used on std or aftermarket plenum manifolds

and have a maximum pressure of 7 psi with an externally accessible pressure relief valve

These durable but lightweight aluminum pumps push up to 60 gallons of water per minute of coolant circulation

Oldsmobile 400 425 455 2PC RMS 166 Tooth DNA® Billet Black Oxide SFI Flexplate although slightly tallerSpeedmaster 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.