{"product_id":"mahle-original-clevite-ms804h20-mahle-original-clevite-ms804h20-h-series-main-bearing-set-for-oldsmobile-v8-400-455-0-020-inch-undersize","title":"MAHLE ORIGINAL\/CLEVITE MS804H20 MAHLE Original\/Clevite MS804H20 H-Series Main Bearing Set for Oldsmobile V8 400\/455, 0.020-Inch Undersize","description":"\u003cp\u003eRestore dependable bottom-end performance with the MAHLE Original\/Clevite MS804H20 H-Series main bearing set. Designed for select Oldsmobile V8 400 and 455 applications, this bearing kit features a 0.020-inch undersize configuration for crankshafts machined to the corresponding undersize specification. It is a practical replacement component for engine rebuilding, performance restoration, and service applications requiring precise main bearing fitment.\u003cbr\u003eThe H-Series design is engineered to support the crankshaft at the main journals while helping maintain proper oil control and consistent engine operation. Each bearing set is manufactured for reliable compatibility with the intended Oldsmobile V8 application and is supplied as a matched kit for servicing the engine’s main bearing positions. Proper clearance is essential for oil pressure, lubrication, and long-term bearing life, so the crankshaft journals, bearing saddles, and oil passages should be carefully inspected before installation.\u003cbr\u003eUse the MAHLE Original\/Clevite MS804H20 only after confirming the engine family, crankshaft journal condition, and required undersize specification. The 0.020-inch undersize size is intended for a crankshaft that has been professionally machined to accept matching bearings; it is not a substitute for dimensional inspection or correct machining. Follow the engine manufacturer’s assembly procedures, use the recommended lubricant, and verify bearing clearance with suitable measuring equipment during installation. With its application-specific design and trusted MAHLE Original\/Clevite construction, this main bearing set provides a dependable foundation for rebuilding an Oldsmobile V8 400 or 455 engine.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: MAHLE Original\/Clevite\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: MS804H20\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBearing Series: H-Series main bearing set\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Select Oldsmobile V8 400 and 455 engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBearing Size: 0.020-inch undersize for a properly machined crankshaft\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eKit Type: Matched set for main bearing service\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInstallation Note: Verify crankshaft journal measurements and required clearance before installation\u003c\/li\u003e\u003c\/ul\u003e","brand":"MAHLE ORIGINAL\/CLEVITE","offers":[{"title":"Default Title","offer_id":48970768679134,"sku":"M77MS804H20","price":267.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/7690\/8766\/files\/M77MS804H20.jpg?v=1788293150","url":"https:\/\/www.racingsupply.ca\/products\/mahle-original-clevite-ms804h20-mahle-original-clevite-ms804h20-h-series-main-bearing-set-for-oldsmobile-v8-400-455-0-020-inch-undersize","provider":"Racing Supply Co.","version":"1.0","type":"link"}