{"product_id":"professional-products-80022-harmonic-damper","title":"Professional Products 80022 Harmonic Damper","description":"\u003cli\u003eThese are externally balanced dampers with bolt in counterweights which can be removed for a neutral balance engine\u003c\/li\u003e\u003cli\u003eThis damper has both the stock Olds pulley bolt pattern as well as big block Chevy\u003c\/li\u003e\u003cli\u003eTDC mark must be repositioned for 330's and damper fits only the late 400 and 425 only\u003c\/li\u003e\u003cbr\u003eThis is an externally balanced damper with a bolt-in counterweight which can be removed for a neutral balanced rotating assembly. This damper will work on 330\/350\/400\/403\/425\/455 cubic inch Olds engines. The damper features the stock Olds accessory pulley bolt pattern as well as a Big Block Chevy bolt pattern for those who may want to run a crank trigger system. Use of Chevy pulleys will require some machining to damper. Note: On 330 engines, TDC mark must be repositioned. This damper fits late 400 and 425 only. Early 400\/425 engines have a different counterbalance than provided. A good balance shop can modify counterbalance to work correctly on early 400 or 425 engines.\u003cbr\u003eBrand: Professional Products, Model: 80022","brand":"Professional Products","offers":[{"title":"Default Title","offer_id":39889939005649,"sku":"EZFB001EM1GQU","price":103.38,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0514\/1227\/1313\/products\/69b001em1gquer1000.jpg?v=1625579757","url":"https:\/\/edealszone.com\/products\/professional-products-80022-harmonic-damper","provider":"edealszone","version":"1.0","type":"link"}