Dual Pass Radiator 19x26 with 1/4in Bung

The ALLSTAR PERFORMANCE Dual Pass Radiator 19x26 with 1/4in Bung is a purpose-built aluminum cooling core designed for high-performance automotive applications where efficient heat dissipation directly impacts engine reliability and sustained power output. Featuring a dual-pass internal flow design, this radiator maximizes coolant contact with the aluminum core for superior thermal transfer compared to single-pass configurations, making it an ideal upgrade for street performance, racing, and modified engine builds where cooling capacity demands exceed stock radiator specifications.

The core dimensions of 26 inches wide by 19 inches tall by 2.25 inches deep provide a compact footprint suitable for engine bays with space constraints while maintaining substantial cooling surface area. Dual-pass construction directs coolant through two separate internal pathways, ensuring maximum turbulence and dwell time within the core—a design advantage that becomes critical during sustained high-load operation such as track driving or towing. The passenger-side inlet and outlet ports accommodate standard cooling hose connections, while the included 1/4-inch bung provides mounting flexibility for temperature sensors or auxiliary cooling system components. Natural aluminum finish allows for visual inspection of internal condition and pairs with powder-coat or traditional engine bay aesthetics.

This radiator serves builders and restoration specialists working on street rods, muscle car restorations, modern performance platforms, and custom engine swaps where OEM cooling systems prove insufficient. The dual-pass design is particularly valued in applications with modified engines producing elevated heat loads—boosted platforms, high-compression builds, or those running extended cooling cycles. ALLSTAR PERFORMANCE radiators are widely recognized in the enthusiast automotive community for manufacturing standards consistent with professional racing programs and aftermarket performance shops.

Aluminum radiators offer significant weight savings over traditional brass-and-copper cores—approximately 40–50% lighter—a measurable advantage in vintage builds or weight-sensitive competition platforms. The dual-pass configuration is engineered to reduce hotspots and improve overall thermal consistency, translating to more stable engine operating temperatures across varying load conditions. Proper coolant chemistry and regular maintenance ensure long service life in both street and competition environments.