Description
The Allstar Performance Pro Series Top Plate Assembly is engineered for racers and serious engine builders who demand precision valve train geometry and reliability under extreme conditions. This CNC-machined component maintains consistent spring pressure and geometry, critical for high-RPM stability and preventing valve float. Built from steel with cadmium plating for corrosion resistance, it’s designed to handle the demands of both circle track and road racing applications.
- 5.5-inch OD compatible
- Steel construction
- Cadmium plated finish
- Includes spring cup
- Pro Series swiveler
- Upper assembly included
- Sold individually
- Direct bolt-on fit
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