{"product_id":"speed-pro-151m-engine-crankshaft-main-bearing-set","title":"Speed Pro 151M Engine Crankshaft Main Bearing Set","description":"\u003ch2\u003eOverview of Speed Pro 151M Main Bearing Set\u003c\/h2\u003e\u003cp\u003eThe Speed Pro 151M engine crankshaft main bearing set is engineered for Pontiac V8 engines with displacements of 421, 428, and 455 cubic inches. Designed specifically for competition series applications, this main set ensures reliable performance in high-stress environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Pontiac V8 engines including Bonneville, Catalina, Firebird, Grand Am, Grand LeMans, Grand Prix, GTO, Laurentian, LeMans, and Parisienne models\u003c\/li\u003e\n\u003cli\u003eConstructed from steel backed overplated bronze alloy for durability\u003c\/li\u003e\n\u003cli\u003eSuper duty alloy material designed for competition use\u003c\/li\u003e\n\u003cli\u003eStandard size set available in Std-10 sizing\u003c\/li\u003e\n\u003cli\u003ePart number 151M for precise identification and fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Composition\u003c\/h2\u003e\u003cp\u003eThe Speed Pro 151M main bearing set is manufactured using a steel backed overplated bronze alloy, providing a balance of strength and wear resistance essential for high-performance Pontiac V8 engines. The super duty alloy material enhances durability under competition conditions, making it suitable for engines with displacements of 421, 428, and 455 cubic inches. This main set is designed to maintain optimal crankshaft alignment and reduce friction, contributing to engine longevity and efficiency.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis main bearing set is intended for use in Pontiac V8 engines found in models such as the Firebird, GTO, and Grand Prix, particularly in competition series builds. It addresses several common engine issues:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduces crankshaft wear and scoring under high RPM conditions\u003c\/li\u003e\n\u003cli\u003ePrevents premature bearing failure in high-performance applications\u003c\/li\u003e\n\u003cli\u003eMaintains proper oil clearance for effective lubrication\u003c\/li\u003e\n\u003cli\u003eSupports engine stability during intense racing or competition use\u003c\/li\u003e\n\u003cli\u003eMitigates vibration and crankshaft misalignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Speed Pro 151M main bearing set, ensure the engine block is thoroughly cleaned and inspected for wear or damage. Use proper torque specifications for main caps to avoid distortion. Verify oil clearances with plastigage or a micrometer to confirm standard size fitment. It is recommended to replace all main bearings simultaneously to maintain uniform wear and performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSpeed Pro manufactures the 151M main bearing set to meet stringent quality standards for competition series engines. The use of premium materials and precise manufacturing processes ensures consistent performance and durability. While specific warranty details are not provided, Speed Pro products typically adhere to industry standards for material and workmanship reliability.\u003c\/p\u003e","brand":"Speed Pro","offers":[{"title":"Default Title","offer_id":44495947727029,"sku":"BHVW-151M","price":104.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SE_151M_Ang_1fef7332-c76b-4b37-b5de-630dd44e30dc.jpg?v=1775021115","url":"https:\/\/www.partcatalog.com\/products\/speed-pro-151m-engine-crankshaft-main-bearing-set","provider":"PartCatalog","version":"1.0","type":"link"}