3/8in Adj. Guide Plates

The ISKY CAMS 3/8in Adjustable Guide Plates are precision-engineered rocker arm guide components suitable for various engine builds, including street rods and competitive racing applications. These guide plates stabilize rocker arm geometry and maintain consistent valve train alignment under extreme rpm and load conditions, making them essential for builders who demand reliability and performance.

Constructed with adjustability in mind, the 3/8-inch guide plates allow fine-tuning of rocker arm position to optimize pushrod angle and reduce binding during the full lift cycle. This adjustability directly impacts valve timing accuracy, reduces side loading on pushrods, and minimizes wear on rocker arm studs, which are critical factors in both high-performance and standard engine applications.

These guide plates are ideal for engine builders working with small-block and mid-block platforms running aftermarket rocker systems, particularly where stock geometry no longer accommodates modified cam profiles or raised intake manifolds. Installation requires careful alignment and may need additional mounting hardware, which is not included.