{"product_id":"aluminum-radiator-for-pontiac-gto-1964-1967-6-4l-6-6l","title":"Aluminum Radiator for Pontiac GTO (1964-1967) 6.4L 6.6L","description":"\u003ch2\u003eHigh-Efficiency 3-Row Aluminum Radiator for 1964-1967 Pontiac GTO\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDirect Cooling Upgrade:\u003c\/strong\u003e Drops operating temperatures and mitigates engine overheating by replacing the restrictive, aging copper-brass factory unit with an all-aluminum, high-capacity cooling core.\u003c\/p\u003e\u003ch3\u003eThe Stock GTO Thermal Saturation Issue\u003c\/h3\u003e\u003cp\u003eFactory 1964–1967 Pontiac A-body cooling systems relied on traditional copper-brass cores joined with lead solder. Over decades of operation, internal mineral scaling, external fin degradation, and solder bloom dramatically restrict coolant flow and convective dissipation. Paired with heavy, high-displacement Pontiac 389 and 400 cubic-inch cast-iron V8 engines that generate significant thermal mass at low speeds or during wide-open throttle pulls, the stock radiator routinely succumbs to heat soak, vapor lock risks, and boil-overs.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eThis direct-fit aluminum radiator utilizes furnace-brazed tubes and high-density louvred fins to maximize thermal transfer efficiency across the core. TIG-welded aircraft-grade aluminum end tanks replace crack-prone soldered brass tanks, eliminating common structural failure points under cyclic thermal stress. Featuring a performance 3-row configuration, the expanded surface area provides the heat rejection needed to stabilize coolant temps under aggressive acceleration and idling conditions without requiring chassis cutting or custom fabrication.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1964-1967 Pontiac GTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003ePontiac V8 (6.4L 389 \/ 6.6L 400) \/ GM A-Body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e325-360 hp \/ 424-441 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1964 Pontiac GTO:\u003c\/strong\u003e 6.4L 389 cu in Pontiac V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1965 Pontiac GTO:\u003c\/strong\u003e 6.4L 389 cu in Pontiac V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1966 Pontiac GTO:\u003c\/strong\u003e 6.4L 389 cu in Pontiac V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1967 Pontiac GTO:\u003c\/strong\u003e 6.6L 400 cu in Pontiac V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\u003cp\u003eEngineered to handle classic muscle torque and high cylinder pressures, this cooling assembly maintains stable fluid temperatures to protect high-compression Pontiac blocks and preserve peak power output under continuous load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50497327563000,"sku":"DS-E2H5VGYBJ","price":200.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-radiator-for-pontiac-gto-1964-1967-6-4l-6-6l-1.jpg?v=1789258292","url":"https:\/\/performancechiptuning.com\/products\/aluminum-radiator-for-pontiac-gto-1964-1967-6-4l-6-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}