King MB5281SI - OEM Replacement Main Bearing Set 4.6L Aluminum Block

Quantity:

Price: $69.99

Manufacturer: King Bearings

Part No.: MB5281SI

Part Number MB5281SI

Application Ford Modular 4.6L Aluminum

Size Standard Size

Notes 3/4 Groove

These King SI-Series main bearings have an improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. These King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. We recommend them for stock style rebuilds or for any naturally aspirated 4.6 or 5.4 engine.

The 4.6 Main Bearings are very specific to which block they fit. These Bearings are ONLY for the 4.6L Aluminum Blocks and cannot be used on any iron blocks. We also carry the OEM replacement bearings for the Romeo and Windsor Aluminum Blocks.