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nitrided and black oxide coated for corrosion and wear resistance
The outer case is made from 8620 Chrome-Nickel-Moly steel and the case hardened for long life
on dedicated cam-grinding machines
The internal components are made from EN36 Material as used in racing
Chevy SBC 350 BBC 454 2PC RMS 153 Tooth DNA® Billet Black Oxide SFI Flexplate nitrided and black oxide coatedSpeedmaster 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.
