4.310" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Reproduction Rev Limiter Assembly used

Reproduction Rev Limiter Assembly used on 1970 428 Cobra Jet/SCJ Cars and 1970 Boss 429

from mild to wild

Made from 4340 round bar to exact tolerances

so parallax errors reading the timing marks are virtually eliminated

Proffesional Products

4.310" Bore Piston Oil Ring Rail Spacer Support (0.030" Thick) Set of 8 Reproduction Rev Limiter Assembly usedThese 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.