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The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise
Standard valve sizes are 2
street rod and marine applications
They are engineered to be "where the oil is" under the most demanding racing conditions
Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range
4.500" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 The Speedmaster MidRise Air designThese 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.
US$ 46.95
US$ 24.95
US$ 48.99
US$ 99.99
