4.310" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 This Speedmaster LowRise manifold is

This Speedmaster LowRise manifold is a direct replacement for the stock manifold on 1957-95 Small Block Chevy non-EGR engines

Superior engineering

accurate movements when shifting

These high-flow style air cleaners feature chromed steel construction and a free-flow

4.310" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 This Speedmaster LowRise manifold 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.