{"product_id":"1845400-flexplate-168-teeth-w-bolts-for-70-90-big-block-chevy-454-chromoly-steel","title":"1845400 Flexplate 168 Teeth w\/Bolts For 70-90 Big Block Chevy 454 Chromoly Steel","description":"\u003ch2\u003eFlexplate for Chevy\u003c\/h2\u003e\u003cp\u003e1845400 flexplate with 168 teeth and bolts for 1970-1990 Chevrolet Big Block 454 engines, engineered from chromoly steel for reliable torque transfer and precise starter engagement.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis flexplate connects the crankshaft to the torque converter in automatic-transmission Chevrolet Big Block 454 engines from 1970 to 1990. The chromoly steel construction withstands high horsepower and torque loads, making this flexplate a trusted choice for street performance, restoration, and heavy-duty use. Each flexplate includes the necessary bolts for installation.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e168-tooth ring gear for reliable starter drive\u003c\/li\u003e\n\u003cli\u003eChromoly steel construction resists cracking and warping\u003c\/li\u003e\n\u003cli\u003ePrecision balanced for smooth engine operation\u003c\/li\u003e\n\u003cli\u003eIncludes bolts for a complete, ready-to-install kit\u003c\/li\u003e\n\u003cli\u003eEngineered for automatic transmission applications in 1970–1990 Big Block Chevy engines\u003c\/li\u003e\n\u003cli\u003eThick center plate reinforces the crank flange area\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Chevrolet Big Block 454 (1970–1990)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInstalling a high-performance automatic transmission behind a rebuilt 454 engine\u003c\/li\u003e\n\u003cli\u003eReplacing a cracked or worn flexplate in classic Chevy muscle cars and trucks\u003c\/li\u003e\n\u003cli\u003eUpgrading drivetrain components for drag racing, street performance, or towing\u003c\/li\u003e\n\u003cli\u003eCompleting an engine swap or restoration project on a 1970–1990 Chevrolet platform\u003c\/li\u003e\n\u003cli\u003ePairing with aftermarket torque converters for increased stall speed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1845400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTooth Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e168\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChromoly Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChevrolet Big Block 454 (1970–1990)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this flexplate fit a 1990 Chevrolet 454 truck with a 4L80E transmission? \u003cstrong\u003eA:\u003c\/strong\u003e This flexplate is designed for 1970–1990 Big Block Chevy 454 engines and includes a bolt pattern compatible with TH350, TH400, 700R4, and many 4L80E torque converters; verify converter bolt circle before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is balancing required after installing this chromoly flexplate? \u003cstrong\u003eA:\u003c\/strong\u003e The flexplate is precision balanced from the factory for typical 454 external balance; however, for high-RPM or stroker builds, have your rotating assembly checked.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44965059035222,"sku":"ZZ3A01323","price":211.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_b3b04df0-2ff1-4a5b-b852-28f002eddd22.jpg?v=1781653103","url":"https:\/\/www.solidspare.com\/products\/1845400-flexplate-168-teeth-w-bolts-for-70-90-big-block-chevy-454-chromoly-steel","provider":"Solid Spare","version":"1.0","type":"link"}