Speedmaster PCE251.1026 flat guide plates are engineered specifically for Pontiac 326, 400, and 455 engines, ensuring precise pushrod alignment for consistent valvetrain geometry. Designed to accept a 5/16" pushrod and a 7/16" rocker arm stud hole, these one-piece guide plates deliver a clean, stable fit that helps reduce side-loading on pushrods and promotes even wear across the valvetrain components.
Whether you're rebuilding a classic Pontiac street engine or putting together a performance build, these guide plates offer a straightforward, reliable upgrade to maintain accurate pushrod tracking under demanding conditions. Sold as a set of flat-style, single-piece units compatible with the Pontiac 326, 400, and 455 engine families.
MPNPCE251.1026
UPC840136521730
