{"product_id":"performance-radiator-for-buick-skylark-1969-1979-4-1l-5-0l","title":"Performance Radiator for Buick Skylark (1969-1979) 4.1L 5.0L","description":"\u003ch2\u003eHigh-Efficiency All-Aluminum Performance Radiator for 1969-1979 Buick Skylark\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Radiator replaces the inefficient factory cooling unit on the 1969-1979 Skylark to maximize heat dissipation, eliminate thermal saturation, and prevent overheating during heavy engine loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Buick Skylark Thermal Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory radiators installed in the classic \u003cstrong\u003eGM A-Body\u003c\/strong\u003e and \u003cstrong\u003eGM X-Body\u003c\/strong\u003e platforms utilized copper-brass construction joined by lead solder. Over decades of heat cycling, internal galvanic corrosion and mineral deposits cause scale buildup, choking coolant passages and drastically degrading laminar fluid flow. Furthermore, OEM core designs feature restrictive tube spacing and lower fin-per-inch (FPI) density, leaving classic engines prone to severe heat soak in low-airflow situations such as heavy traffic or spirited driving.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed entirely from aircraft-grade aluminum, this direct-fit performance radiator maximizes thermal transfer via an optimized tube-and-fin core. Precision TIG-welded end tanks replace mechanically crimped joints to ensure a robust structural barrier against internal pressure spikes. High-density louvered aluminum fins increase effective surface area, promoting rapid convective cooling under minimal ram air velocity. Designed to drop into factory mounts, this unit seamlessly replaces OEM references like \u003cstrong\u003eCC571\u003c\/strong\u003e and \u003cstrong\u003eDPI571\u003c\/strong\u003e without cutting or fabrication.\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;\"\u003e1969-1979 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;\"\u003eChevrolet 250 (4.1L I6) \/ Buick 350 \/ Chevy 305 (5.0L V8) \/ GM A-Body, X-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;\"\u003e110-155 hp \/ 175-250 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;\"\u003eCC571, AE571, EC571, MC571, DPI571, 571, 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\u003e1969-1972 Buick Skylark (4.1L 250ci Inline-6)\u003c\/li\u003e\n  \u003cli\u003e1975-1979 Buick Skylark (4.1L 250ci Inline-6)\u003c\/li\u003e\n  \u003cli\u003e1977-1979 Buick Skylark (5.0L 305ci 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 GM X-Body Skylark?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1969-1979 Buick Skylark equipped with the 4.1L Inline-6 or 5.0L V8 engine options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit accommodate factory automatic transmission cooling lines?\u003c\/strong\u003e\u003cbr\u003e Yes, it features an integrated brass transmission oil cooler compatible with factory inverted flare lines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Buick Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eMaintain consistent operating temperatures and preserve critical engine components under aggressive acceleration and highway cruising. This cooling system upgrade eliminates thermal bottlenecks to reliably protect your vintage powertrain.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593890369784,"sku":"DS-EMCCIJPJ0","price":174.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-buick-skylark-1969-1979-4-1l-5-0l-1.jpg?v=1790052623","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-radiator-for-buick-skylark-1969-1979-4-1l-5-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}