Aluminum Cap Kit

The Aluminum Cap Kit by ALLSTAR PERFORMANCE is a lightweight engine dress-up component designed for builders and enthusiasts who demand clean, professional aesthetics on their valve covers and intake manifolds. This kit is perfect for those restoring classic muscle cars, building street rods, or finishing custom engine bays, as it eliminates unsightly exposed ports and creates a unified, polished appearance.

Constructed from aluminum, this cap kit offers corrosion resistance, making it suitable for both show engines and daily-driven vehicles. The lightweight construction—at just 0.2 lbs total—adds virtually no weight to your engine assembly while delivering a refined, factory-quality finish. The thermal characteristics of aluminum allow for effective heat dissipation, which can help maintain safe component longevity.

This kit is compatible with small-block and mid-size engine platforms commonly found in street rods, hot rods, and classic muscle car restorations, where engine bay presentation is crucial. Installation is straightforward—caps simply cover breather ports and open fittings on your valve covers and intake systems, requiring no special tools or modifications.