{"product_id":"1845400-flexplate-168-teeth-bolts-for-chevy-70-90-big-block-454-chromoly-steel","title":"1845400 Flexplate 168 Teeth Bolts for Chevy 70 90 Big Block 454 Chromoly Steel","description":"\u003cstrong\u003eThis Flexplate is a chromoly steel flexplate with 168 teeth compatible with 1970-1990 Big Block Chevy 454 engines and matches OEM Part# 1845400. Includes mounting bolts.\u003c\/strong\u003e \u003ch2\u003eProduct Overview\u003c\/h2\u003e This heavy-duty flexplate connects the crankshaft to the torque converter in automatic 454 Big Block builds. With 168 teeth and chromoly steel construction, the flexplate withstands high torque loads without warping or cracking. Ideal for street performance, towing, and racing applications that demand a reliable flexplate. \u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eChromoly steel construction delivers high tensile strength and crack resistance\u003c\/li\u003e \u003cli\u003e168-tooth ring gear for proper starter alignment and consistent cranking\u003c\/li\u003e \u003cli\u003eDouble-welded ring gear withstands repeated torque spikes\u003c\/li\u003e \u003cli\u003eMounting bolts included for a complete, ready-to-install package\u003c\/li\u003e \u003cli\u003ePrecision-machined center pilot ensures perfect crankshaft alignment\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e1970–1990 Big Block Chevy 454 V8\u003c\/li\u003e \u003cli\u003eDesigned for automatic transmissions\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCommon Uses\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eEngine overhauls and performance builds for classic Chevy trucks, Chevelles, and Corvettes\u003c\/li\u003e \u003cli\u003eReplacing cracked or fatigued factory flexplates on high-mileage 454s\u003c\/li\u003e \u003cli\u003eDrag racing and street\/strip builds demanding a durable flexplate\u003c\/li\u003e \u003cli\u003eHeavy-duty towing applications where driveline shock loads are frequent\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 1845400\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTooth Count:\u003c\/strong\u003e 168\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly Steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIncludes Bolts:\u003c\/strong\u003e Yes\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this flexplate compatible with both internally and externally balanced 454 engines?\u003cstrong\u003e A:\u003c\/strong\u003e This flexplate is intended for externally balanced 454 engines; confirm your engine balance factor before ordering.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need a specific starter to match the 168-tooth ring gear?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, a starter with an offset bolt pattern designed for 168-tooth flexplates is required; always verify starter compatibility.\u003c\/p\u003e \u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53679691333905,"sku":"ZZ3A01323","price":211.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_ea77281c-7497-4d61-b90d-7da107524501.jpg?v=1781653276","url":"https:\/\/www.duraforce.com\/products\/1845400-flexplate-168-teeth-bolts-for-chevy-70-90-big-block-454-chromoly-steel","provider":"DURAFORCE","version":"1.0","type":"link"}