{"product_id":"gm-lsx-black-steel-high-performance-sfi-harmonic-balancer-damper","title":"GM LSX Black Steel High Performance SFI Harmonic Balancer\/Damper","description":"\u003cp\u003eUpgrade your GM Gen III\/IV LS-based 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 6.325 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\u003e360 deg. timing marks simplify ignition setup, while the 6.325 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\u003eGM LS SERIES V8 ENGINES\u003cbr\u003e• 4.8L \/ 293 in³ (LR4, LY2)\u003cbr\u003e• 5.3L \/ 325 in³ (LM7, L59, L33, LC9, LH6, LY5, LMG)\u003cbr\u003e• 5.7L \/ 346 in³ (LS1, LS6)\u003cbr\u003e• 6.0L \/ 364 in³ (LQ4, LQ9, LY6, L76, L96)\u003cbr\u003e• 6.2L \/ 376 in³ (LS2, LS3, L92, L99, LSA)\u003cbr\u003e• 7.0L \/ 427 in³ (LS7)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003eChevrolet Silverado \/ GMC Sierra (LS equipped)\u003cbr\u003eChevrolet Camaro \/ Corvette (LS equipped)\u003cbr\u003eChevrolet Tahoe \/ Suburban \/ Yukon (LS equipped)\u003cbr\u003ePontiac GTO \/ G8 (LS equipped)\u003cbr\u003eLS swap, street\/strip, and performance builds\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003eDesigned for GM Gen III\/IV LS-based engine platforms.\u003cbr\u003eVerify crankshaft snout, pulley groove count, belt drive, and accessory spacing before installation.\u003cbr\u003eNot compatible with Gen I Small Block Chevy, Gen V LT, or Big Block Chevy engines.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt And Washer Included\u003c\/td\u003e\n\u003ctd\u003eYes\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\u003eDrive Belt Type\u003c\/td\u003e\n\u003ctd\u003eSerpentine\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\u003eHarmonic Balancer Color\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarmonic Balancer Finish\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarmonic Balancer Material\u003c\/td\u003e\n\u003ctd\u003eSteel\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\u003e6.325 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e6.325 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\u003e360 deg.\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":49562204635432,"sku":"81102BK","price":325.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/81102_2.jpg?v=1732640179","url":"https:\/\/www.topstreetperformance.com\/products\/gm-lsx-black-steel-high-performance-sfi-harmonic-balancer-damper","provider":"Top Street Performance","version":"1.0","type":"link"}