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This crank support system is a must have for all small block chevy racers with a supercharger
The internal components are made from EN36 material as used in racing
the least runout
If you're completing the installation of a Speedmaster electric water pump
the stock accessories may not run at the same speed as originally designed
4.000" - 4.060" Bore Piston Oil Ring Rail Spacer Support (0.020" Thick) This crank support system isThese Speedmaster piston oil ring spacers are used in applications where the piston oil ring groove intersects the pinhole. Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove. Available in different bore diameters to suit your specific engine's needs, the Speedmaster piston oil ring spacers will keep your pistons working smoothly throughout the entire operating range.
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