{"product_id":"fluidampr-650401-pontiac-389-400-421-428-455-cid-v-8-steel-internally-balanced-damper","title":"Fluidampr 650401 - Pontiac 389 400 421 428 455 CID V-8 Steel Internally Balanced Damper","description":"\u003cp\u003eFluidampr 650401 - Pontiac 389 400 421 428 455 CID V-8 Steel Internally Balanced Damper\u003c\/p\u003e\u003cp\u003eHarmonic Balancer - 6.625 in OD - Steel - Black Zinc - Internal Balance - Pontiac V8 - Each\u003c\/p\u003e\u003cp\u003eHarmonic Balancer - Fluidampr - Pontiac \/ Oldsmobile - 1959 - 1979 V8 - Internal Balance - Steel - Black Zinc Chromate - 6-5\/8\" dia - 10.2 lbs - SFI 18.1 - Made in USA - Each\u003c\/p\u003e\u003cp\u003eProtect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved timing marks. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBroad RPM range protection.\u003c\/li\u003e\n\u003cli\u003eReduce risk of crankshaft failure.\u003c\/li\u003e\n\u003cli\u003eReduce wear on critical engine parts.\u003c\/li\u003e\n\u003cli\u003eUnleash lost torque \u0026amp; horsepower.\u003c\/li\u003e\n\u003cli\u003eNo maintenance required.\u003c\/li\u003e\n\u003cli\u003eSuperior durability.\u003c\/li\u003e\n\u003cli\u003eSFI 18.1 spec. Race proven for over 35 years.\u003c\/li\u003e\n\u003cli\u003eMade in USA.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBolt and Washer Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: \u003cspan\u003e6-5\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSafety Rating\u003c\/strong\u003e: \u003cspan\u003eSFI 18.1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePulley Bolt Pattern\u003c\/strong\u003e: \u003cspan\u003e4 bolt pattern on 3.300 circle.  Holes in pulley must be re-drilled. 1969-later timing cover and pulley may be required on earlier models.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Quantity\u003c\/strong\u003e: \u003cspan\u003e1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDegree Marking Range\u003c\/strong\u003e: \u003cspan\u003e50 BTDC to 10 ATDC.  Additional timing\/degree marks at 90, 180 and 270\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eSteel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eKeyway Spec\u003c\/strong\u003e: \u003cspan\u003eSingle; (3\/16\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: \u003cspan\u003e1.372\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003eBlack Zinc\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine Balance\u003c\/strong\u003e: \u003cspan\u003eInternal\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: \u003cspan\u003e3.247\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDegree Markings\u003c\/strong\u003e: \u003cspan\u003eEngraved\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWeight \/ Rotating Weight\u003c\/strong\u003e: \u003cspan\u003e10.2 lbs \/ 6.8 lbs\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBolt And Washer Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: \u003cspan\u003e3.247\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: \u003cspan\u003e1.372\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eKeyway Type\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Diameter\u003c\/strong\u003e: \u003cspan\u003e1.372\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Hole Quantity\u003c\/strong\u003e: \u003cspan\u003e1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: \u003cspan\u003e6.625\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluidampr","offers":[{"title":"Default Title","offer_id":49927470317846,"sku":"FLUID-650401","price":574.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/0878\/9782\/files\/0_4733de9b71d5c38001aea63ee3ac288al_normalized.jpg?v=1776553960","url":"https:\/\/www.cspracing.com\/products\/fluidampr-650401-pontiac-389-400-421-428-455-cid-v-8-steel-internally-balanced-damper","provider":"Complete Street Performance","version":"1.0","type":"link"}