Aluminum Race Radiator for Pontiac G8 (2008-2009) 6.0L 6.2L

High-Efficiency Aluminum Race Radiator for 2008-2009 Pontiac G8

What it Does: The Aluminum Race Radiator replaces the leak-prone factory plastic-tank assembly on the 2008-2009 Pontiac G8 to dramatically increase heat dissipation and eliminate cooling system failure points under heavy load.

The Stock Pontiac G8 Brittle End Tank Failure

Factory radiators on the Zeta platform rely on composite plastic end tanks crimped onto a thin single-row aluminum core using elastomeric gaskets. Under the repetitive thermal cycling and high hydraulic pressures typical of the L76 and LS3 powerplants, this plastic degrades, embrittles, and develops stress fractures near the upper hose neck. Over time, the crimped tank-to-core seams loosen, leading to coolant loss, severe thermal derating, and potential engine overheating during spirited driving or track sessions.

The Engineering Solution

This race-ready drop-in upgrade resolves thermal bottlenecks with 100% T-3003 aluminum construction. The unit features heavy-duty, TIG-welded aluminum end tanks that permanently eliminate crimped plastic failure points. Its brazed, high-efficiency 2-row tube-and-fin core measures 15.16" x 29.92" x 1.57", dramatically expanding fluid capacity and surface area for superior heat transfer. Designed specifically for the Pontiac muscle sedan, it integrates a built-in transmission fluid cooler with precision M14x1.5 fittings to control transmission temperatures on automatic configurations while utilizing stock mounting points and factory hose locations.

Technical Specifications

Compatibility

• 2008-2009 Pontiac G8 GT 6.0L V8
• 2009 Pontiac G8 GXP 6.2L V8

Frequently Asked Questions

Does this fit the Zeta G8?
Yes, this is a direct fit for the 2008-2009 Pontiac G8 equipped with the L76 and LS3 engine.

Can this radiator be used with the factory cooling fans and shroud?
Yes, the mounting points are engineered to clear the OEM fan shroud and bracketry without custom modifications.

The Pontiac Muscle Caliber

Engineered to handle sustained wide-open throttle pulls and demanding track duty, this all-aluminum radiator delivers the structural integrity and thermal headroom required by modern LS V8 horsepower.