4.000" - 4.060" Bore Piston Oil Ring Rail Spacer Support (0.020" Thick) Speedmaster crankcase evacuation systems are

Speedmaster crankcase evacuation systems are primarily drag race systems designed to reduce pressure buildup in the engine crankcase

Providing performance and style with its polarized lens reducing glare reflections from mirrors

378" (35mm) axle shaft35 spline axles:Requires bearing PCE231

race-bred styling will make bad intentions clear for drag race

These computer-machined brackets are manufactured from high quality materials and come with a chrome finish

4.000" - 4.060" Bore Piston Oil Ring Rail Spacer Support (0.020" Thick) Speedmaster crankcase evacuation systems areThese 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.