{"product_id":"performance-radiator-for-pontiac-firebird-1974-1976-4-1l","title":"Performance Radiator for Pontiac Firebird (1974-1976) 4.1L","description":"\u003ch2\u003eHeavy-Duty Performance Aluminum Radiator for 1974-1976 Pontiac Firebird\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Aluminum Radiator replaces the factory copper-brass unit on the 1974-1976 Pontiac Firebird to lower coolant temperatures and prevent thermal throttling under sustained driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Pontiac Firebird Cooling Deficiencies\u003c\/h3\u003e\n\u003cp\u003eFactory cooling systems in the mid-1970s \u003cstrong\u003eF-Body\u003c\/strong\u003e platform utilized copper-brass construction bonded with lead-tin solder. Over decades, galvanic corrosion and solder blooming choke the narrow internal tubes, severely restricting coolant flow. Compounded by decades of internal scale buildup and fin oxidation, the factory core struggles with thermal dissipation. When paired with high ambient temperatures, the enclosed engine bay traps radiant heat, pushing the factory inline-six past its optimal thermal operating window and risking warped cylinder heads or boiling coolant.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit performance radiator upgrades your cooling system using a high-density, brazed aluminum tube-and-fin core welded to structural aluminum end tanks. Aluminum provides superior thermal conductivity over aging soldered copper, while expanded internal fluid passages maximize surface area contact and coolant volume. Fully TIG-welded seams eliminate leak-prone epoxy and mechanical tank seals. Sized specifically for the \u003cstrong\u003eGM 250 ci (4.1L)\u003c\/strong\u003e inline engine configuration, it drops into the factory core support with proper hose inlet\/outlet geometry and an integrated transmission fluid cooler circuit.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1974-1976 Pontiac Firebird\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e4.1L (250 ci) Inline-6 \/ 2nd Gen F-Body\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e100 hp \/ 175 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1974 Pontiac Firebird Base 4.1L L6\u003c\/li\u003e\n  \u003cli\u003e1975 Pontiac Firebird Base 4.1L L6\u003c\/li\u003e\n  \u003cli\u003e1976 Pontiac Firebird Base 4.1L L6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the F-Body Firebird?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1974-1976 Pontiac Firebird equipped with the \u003cstrong\u003e4.1L (250 ci)\u003c\/strong\u003e inline-six engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this radiator accommodate automatic transmission lines?\u003c\/strong\u003e\u003cbr\u003e Yes, it features an internal transmission oil cooler with standardized thread fittings compatible with OEM hardlines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eSecond-generation muscle cars demand robust thermal management to ensure consistent power delivery and mechanical longevity. This all-aluminum radiator delivers modern heat rejection efficiency while retaining factory mounting integrity for your classic Firebird.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593927201016,"sku":"DS-E9RVSKW2N","price":174.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-pontiac-firebird-1974-1976-4-1l-1.jpg?v=1790053159","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-radiator-for-pontiac-firebird-1974-1976-4-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}