Valve Covers SBC Alum Centerbolt w/Tubes

The ALLSTAR PERFORMANCE Valve Covers SBC Aluminum Centerbolt with Tubes (ALL 26137) is a matched pair of polished aluminum valve covers engineered for small block Chevy engines requiring clean, functional breather integration. These tall-profile covers feature a center bolt mounting design and integrated tube provisions, making them a direct fit for builders prioritizing both cosmetic presentation and proper engine breathing.

Aluminum construction provides weight savings compared to cast iron alternatives while maintaining structural rigidity under normal operating conditions. The polished finish resists light oxidation better than bare aluminum, though salt-air or marine environments will require periodic maintenance to preserve appearance. The centerbolt attachment method distributes clamping load evenly across the cover gasket surface, reducing the risk of oil seepage at the gasket perimeter. Tube provisions allow flexible plumbing of positive crankcase ventilation (PCV) systems without routing hoses across the engine bay, a practical consideration in tight engine compartments or custom installations.

These covers suit street performance, weekend track use, and show applications where visual appeal and functional breathing matter equally. Small block Chevy platforms—from carbureted 350s to modern LS variants—benefit from clean, properly sealed valve cover systems that reduce crankcase pressure without external breather boxes. Builders restoring original appearance or upgrading to a higher-spec engine dress-up package will find this pair a solid core component. Pairing them with quality gaskets and appropriate tube diameter hose ensures reliable service across typical driving demands.