{"product_id":"holley-harmonic-balancer-bolt-chevy-big-block-12-point-97-321","title":"Holley Harmonic Balancer Bolt - Chevy Big Block - 12-Point 97-321","description":"\u003cp\u003eReplacement Harmonic Balancer Bolt with Thick Washer, for Chevy Big Block 396-454 with Holley Mid-Mount Accessory Drive System 20-242 \u0026amp; 20-242BK\u003c\/p\u003e\u003cp\u003eReplacement harmonic balancer bolt with thick washer for Big Block Chevy Mid-Mount Accessory drive system.  12-Point, 1\/2\" Wrench Size, 1\/2\"-20 x 2.500\" Under Head Length, Washer diameter 1.5\" x 0.200\" Thick.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNOTES:  \u003c\/strong\u003eTorque Harmonic Balancer Bolt to 85 ft\/lbs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e180,000 PSI Rating (Grade 9)\u003c\/li\u003e\n\u003cli\u003eMade from Steel\u003c\/li\u003e\n\u003cli\u003eBlack E-Coat Finish\u003c\/li\u003e\n\u003cli\u003e1\/2\" Wrench Size\u003c\/li\u003e\n\u003cli\u003e12-Point Bolt Head\u003c\/li\u003e\n\u003cli\u003eLarge Diameter Extra Thick Washer - .200\" Thick x 1.5\" Diameter\u003c\/li\u003e\n\u003cli\u003eReusable - Not Torque-To-Yield\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBolt Grade\u003c\/th\u003e\n\u003ctd\u003e10.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHolley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003ctd\u003eChevy Big Block V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack E-Coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade Type\u003c\/th\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Drive Type\u003c\/th\u003e\n\u003ctd\u003e12 Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003e12-Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e2.5Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHarmonic Balancer Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePSI Rating\u003c\/th\u003e\n\u003ctd\u003e180,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReusable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Diameter\u003c\/th\u003e\n\u003ctd\u003e1\/2Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Pitch\u003c\/th\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Size\u003c\/th\u003e\n\u003ctd\u003e1\/2-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUnder Head Length\u003c\/th\u003e\n\u003ctd\u003e2.500\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUniversal Or Specific Fit\u003c\/th\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWasher Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWasher Size\u003c\/th\u003e\n\u003ctd\u003e.200\" Thick x 1.5\" Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWrench Size\u003c\/th\u003e\n\u003ctd\u003e1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":49186128920789,"sku":"97-321","price":18.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2493\/0960\/files\/holley-harmonic-balancer-bolt-chevy-big-block-12-point-97-321-modern-day-muffler-1.jpg?v=1738927262","url":"https:\/\/moderndaymuffler.com\/products\/holley-harmonic-balancer-bolt-chevy-big-block-12-point-97-321","provider":"Modern Day Muffler","version":"1.0","type":"link"}