{"product_id":"performance-radiator-for-buick-skylark-1965-1968-3-7l-4-1l-4-9l","title":"Performance Radiator for Buick Skylark (1965-1968) 3.7L 4.1L 4.9L","description":"\u003ch2\u003eDirect-Fit Aluminum Performance Radiator for 1965-1968 Buick Skylark\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The All-Aluminum Performance Radiator directly replaces deteriorated factory cooling units on 1965-1968 Buick Skylarks to maximize thermal transfer efficiency and prevent engine overheating under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Buick Skylark Cooling Vulnerability\u003c\/h3\u003e\n\u003cp\u003eFactory cooling systems on first- and second-generation GM \u003cstrong\u003eA-body\u003c\/strong\u003e Skylarks utilized heavy copper-brass cores joined with lead solder. Over decades of heat cycling, solder blooming and galvanic corrosion degrade thermal conductivity and block narrow core passages. Combined with restricted tube diameters, factory radiators cannot efficiently dissipate heat soak when modern traffic conditions demand sustained idling or prolonged cruising with the \u003cstrong\u003eFireball 225 V6\u003c\/strong\u003e, \u003cstrong\u003e250 Inline-6\u003c\/strong\u003e, or \u003cstrong\u003eBuick 300 V8\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from lightweight, aircraft-grade aluminum, this drop-in performance unit features a furnace-brazed tube-and-fin core designed for maximum fluid velocity and atmospheric heat exchange. Heavy-duty aluminum end tanks are 100% TIG-welded to eliminate the mechanical seam failure and thermal fatigue common to original brazed brass tanks. With an integrated transmission fluid heat exchanger and precision-formed inlet and outlet ports, this radiator matches original core support dimensions while drastically outperforming OE part numbers \u003cstrong\u003e571\u003c\/strong\u003e and \u003cstrong\u003eCU571\u003c\/strong\u003e.\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;\"\u003e1965-1968 Buick Skylark\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;\"\u003e3.7L V6, 4.1L I6, 4.9L V8 \/ GM A-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;\"\u003e155-250 hp \/ 225-335 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;\"\u003e571, CC571, CU571, PR0571, 899571, 21369, A571, REA41-571A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1965-1967 Buick Skylark 3.7L 225 cu in Fireball V6\u003c\/li\u003e\n  \u003cli\u003e1968 Buick Skylark 4.1L 250 cu in Inline-6\u003c\/li\u003e\n  \u003cli\u003e1965-1967 Buick Skylark 4.9L 300 cu in Wildcat V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the A-body Skylark?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1965-1968 Buick Skylark equipped with the \u003cstrong\u003eFireball 225\u003c\/strong\u003e, \u003cstrong\u003e250 Inline-6\u003c\/strong\u003e, or \u003cstrong\u003eBuick 300\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit accommodate automatic transmission lines?\u003c\/strong\u003e\u003cbr\u003e Yes, it features an integrated internal transmission cooler that accepts standard factory inverted flare cooler lines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Buick Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle both classic small-block torque and relentless summer heat, this unit provides modern thermal capacity while retaining period-correct engine bay fitment and factory cooling fan clearance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593928937720,"sku":"DS-E7G7KAHDU","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-buick-skylark-1965-1968-3-7l-4-1l-4-9l-1.jpg?v=1790053262","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-radiator-for-buick-skylark-1965-1968-3-7l-4-1l-4-9l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}