{"product_id":"corvette-belt-ac-compressor-327-sb-300350hp-wps-repro-gm-3880858-1966-1967","title":"Corvette Belt. AC Compressor - 327 SB 300\/350hp w\/PS - Repro GM# 3880858: 1966-1967","description":"\u003cdiv\u003e\n\u003cp\u003eRestore your classic 19661967 Corvette to factoryoriginal reliability with the Corvette Belt designed for the AC compressor on the 327 small block. This is a precise reproduction of GM part 3880858, specified for 327 SB engines delivering 300\/350hp with Power Steering. If you’re rebuilding or authenticating a showroomquality resto, this belt ensures the exact fit, feel, and performance your car originally had.\u003c\/p\u003e \u003ch3\u003eWhy this reproduction matters\u003c\/h3\u003e\n\u003cp\u003eAuthenticity isn’t just about looksit’s about matching the original drive train geometry, belt width, and routing that the factory engineers intended. This belt mirrors the dimensions and construction of the GM 3880858 spec, so you won’t chase fitment issues or belt slippage that plague mismatched parts. For collectors and enthusiasts chasing a periodcorrect restoration, it’s the dependable choice that keeps your AC and power steering system operating as designed.\u003c\/p\u003e \u003ch3\u003eKey features and benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eGMspec reproduction\u003c\/strong\u003e of part \u003cstrong\u003eGM# 3880858\u003c\/strong\u003e, guaranteeing authentic dimensions and performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFits 19661967 Corvette\u003c\/strong\u003e with a \u003cstrong\u003e327 Small Block\u003c\/strong\u003e engine producing \u003cstrong\u003e300\/350hp\u003c\/strong\u003e and factory \u003cstrong\u003ePower Steering\u003c\/strong\u003e.\u003c\/li\u003e \u003cli\u003ePrecise \u003cstrong\u003ebelt routing compatibility\u003c\/strong\u003e for the factory AC compressor, reducing installation guesswork and ensuring proper tension and pulley alignment.\u003c\/li\u003e \u003cli\u003eDurable construction designed to endure classiccar driving conditions, preserving original AC and PS system operation.\u003c\/li\u003e \u003cli\u003eIdeal for restoration projects, highfidelity builds, and owners who demand OEMequivalent performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and scenario ideas\u003c\/h3\u003e\n\u003cp\u003e• Restoring a numbersmatching or puristera Corvette where correct components matter for value and authenticity.\u003c\/p\u003e\n\u003cp\u003e• Replacing a worn or misfit belt in an originalcondition engine bay to restore reliable AC cooling and power steering assist.\u003c\/p\u003e\n\u003cp\u003e• Completing a periodcorrect engine bay upgrade where every part aligns with the ’66–’67 design language.\u003c\/p\u003e \u003ch3\u003eWhat problems this belt solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEliminates fitment uncertainty from aftermarket belts that don’t align with the original pulley geometry.\u003c\/li\u003e \u003cli\u003ePrevents premature belt wear, slippage, or noise by matching the exact OEM belt width and length for the 327 SB with PS configuration.\u003c\/li\u003e \u003cli\u003eMaintains proper tension between the AC compressor and power steering pump, preserving cooling efficiency and steering feel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation notes and best practices\u003c\/h3\u003e\n\u003cp\u003eWhen installing, follow the factory routing for the AC compressor and PS pump to ensure correct tension and alignment. Inspect pulleys and idlers for wear, and use the appropriate belt tensioning method to avoid overtightening, which can stress bearings. If you’re rebuilding the AC system, pairing this belt with correctly conditioned hoses and connectors helps you achieve stable, yearround cooling and steering performance.\u003c\/p\u003e \u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cp\u003eClassic Corvette owners who want an authentic, plugandplay belt that mirrors the original GM specification. It’s the smart choice for restorers, concourslevel builders, and enthusiasts pursuing a faithful, mechanically sound 1966–1967 327 SBC with Power Steering setup.\u003c\/p\u003e \u003cp\u003eSecure the exact GMspec belt for your vintage Corvette and keep the AC compressor and power steering performing as the factory intendedsustaining comfort, reliability, and classic curb appeal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CA","offers":[{"title":"Default Title","offer_id":40981624520753,"sku":"A251574DS","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/4078\/files\/medium_14554d4e-673b-4e06-a473-abb55d21309e.jpg?v=1777043159","url":"https:\/\/www.corvetteguys.com\/products\/corvette-belt-ac-compressor-327-sb-300350hp-wps-repro-gm-3880858-1966-1967","provider":"CorvetteGuys.com","version":"1.0","type":"link"}