King Engine Bearings MB5503HP STDX High Performance Main Bearing Set for Ford 351 Cleveland 5.8L

The King Engine Bearings MB5503HP STDX is a high-performance main bearing set designed specifically for Ford 351 Cleveland engines with 2.750-inch (2.749") main journals. This complete set includes 5 pairs of bearings and features King's advanced Alecular bi-metal composite technology for superior durability in demanding racing applications.

Key Features:

• Alecular bi-metal composite construction resists extrusion and material migration under extreme loads
• Bulls Eye Tolerance with all shells matched to 0.0001" for industry-leading precision
• 90° oil groove shape maintains oil flow integrity and increases bearing load capacity
• Enlarged, chamfered oil holes for improved lubrication
• Medium eccentricity design enables optimum load distribution
• Narrowed design accommodates large-radius aftermarket crankshafts
• Optimized crush height for enhanced bearing retention
• Standard size with STDX .001" extra clearance specification

Applications:

The HP Series is specifically engineered for high-load, short-duration racing applications including drag racing, monster trucks, and tractor pull competitions. Ideal for blown, turbocharged, nitrous oxide, and alcohol-fueled engines using nodular cast iron or aftermarket crankshafts. Also suitable for street and strip high-performance builds.

Compatibility:

Fits Ford 351 Cleveland (351C), 351 SVO, Dart 351, and other aftermarket blocks using 351C-style 2.749" (2.750") main journal crankshafts. This set is designed for use with aftermarket performance crankshafts machined with large radii at the journal edges.

King Engine Bearings are manufactured in Israel to exacting standards and are trusted by engine builders worldwide for their quality and performance. These bearings are precision-finished and should not be resized or altered. Each bearing shell is stamped with its size specification for verification during installation.