{"product_id":"early-ford-small-block-6-4-harmonic-balancer","title":"Early Ford Small Block 6.4\" Harmonic Balancer","description":"\u003cp\u003eUpgrade your early Ford Small Block Windsor engines with a SFI-certified performance harmonic balancer designed to control crankshaft vibration and reduce harmful harmonics across the RPM range. Built for street and performance applications, this 6.440 in. balancer improves engine stability, durability, and overall reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVibration Control \u0026amp; Engine Protection\u003c\/strong\u003e\u003cbr\u003eDesigned to dampen crankshaft harmonics, this balancer helps reduce engine wear and improve long-term reliability—especially in performance and high-RPM applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Performance Construction\u003c\/strong\u003e\u003cbr\u003eSteel and elastomer construction provides dependable damping and strength, while SFI certification supports high-performance and racing applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Timing \u0026amp; Installation\u003c\/strong\u003e\u003cbr\u003e60 deg. Before Top Dead Center To 0 deg. Top Dead Center timing marks simplify ignition setup, while the 6.440 in. diameter supports proper accessory alignment and straightforward installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt for Street \u0026amp; Performance Applications\u003c\/strong\u003e\u003cbr\u003eIdeal for performance rebuilds, restorations, and upgraded engine combinations where crankshaft stability and consistent operation are critical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eFORD SMALL BLOCK WINDSOR V8\u003cbr\u003e• 3.6L \/ 221 in³\u003cbr\u003e• 4.3L \/ 260 in³\u003cbr\u003e• 4.7L \/ 289 in³\u003cbr\u003e• 5.0L \/ 302 in³\u003cbr\u003e• 5.8L \/ 351 in³ (351W Windsor)\u003cbr\u003e• 5.0L \/ 302 in³ Boss applications (verify application)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003eFord Mustang (Small Block Windsor equipped)\u003cbr\u003eFord F-Series (Small Block Windsor equipped)\u003cbr\u003eFord Bronco (Small Block Windsor equipped)\u003cbr\u003eFord Falcon \/ Fairlane (Small Block Windsor equipped)\u003cbr\u003eMercury Cougar (Small Block Windsor equipped)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003eDesigned for early Ford Small Block Windsor applications.\u003cbr\u003eFits early small block applications with three or four crankshaft pulley bolt holes.\u003cbr\u003eVerify engine balance, pulley alignment, and timing pointer location before installation.\u003cbr\u003eWill not fit 351C Cleveland, 351M, 400M, FE, or 385-series Big Block Ford engines.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt And Washer Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eElastomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper Color\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper Finish\u003c\/td\u003e\n\u003ctd\u003eSatin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper Material\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Balance\u003c\/td\u003e\n\u003ctd\u003eInternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade Type\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hole Quantity\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e6.440 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulley Groove Quantity\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSFI Rating\u003c\/td\u003e\n\u003ctd\u003eSFI 18.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTiming Marks\u003c\/td\u003e\n\u003ctd\u003e60 deg. Before Top Dead Center To 0 deg. Top Dead Center\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Top Street Performance","offers":[{"title":"Default Title","offer_id":49562183860520,"sku":"30006","price":205.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/30006_1600_1_2.jpg?v=1732639829","url":"https:\/\/www.topstreetperformance.com\/products\/early-ford-small-block-6-4-harmonic-balancer","provider":"Top Street Performance","version":"1.0","type":"link"}