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While the GM 8
the Speedmaster piston oil ring spacers will keep your pistons working smoothly throughout the entire operating range
Unlike our competitors that only use 3 or 4 pinion gears
With an adjustable vintage plastic snapback closure
This crank support system is a must have for all small block chevy racers with a supercharger
Ford 429 460 164 Tooth DNA® Billet Black Oxide SFI Flexplate While the GM 8Speedmaster 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.
