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King Engine Bearings Ford Prod. V8 4.6L/5.4L Performance Main Bearing Set - Size +0.026mm

SKU: KINGMB5280HP.026

Main Bearings

KING Performance Main Bearings...

King Engine Bearings Ford Prod. V8 4.6L/5.4L Performance Main Bearing Set - Size +0.026mm

SKU: KINGMB5280HP.026

Main Bearings

KING Performance Main Bearings...

A$291.21
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s King Engine Bearings, KING BEARINGS, King Racing StreetFX SKU kingMB5280HP.026 SFX Item ID 4294348 Accounting SKU king-MB5280HP.026 Manufacturer SKU MB5280HP.026 Manufacturer UPC 611500535079 Alternative References KGB-MB5280HP0026

King Engine Bearings Ford Prod. V8 4.6L/5.4L Performance Main Bearing Set - Size +0.026mm

Part Type

Engine Crankshaft Main Bearing Set

Product Details

Additional Shell Thickness:TBA
Crank Undersized:-0.020in
Description:Main Bearing HP Series; Bi-Metal Performance
Material:alecular (racing line)
Part Number:kingMB5280HP.026
Size:0.25in (0.635mm)
Title:King Bearings
Undersize:0.026

Product Overview

The HP series was developed mainly for drag race applications needing a material that is harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short duration and still offer higher embedabilty and compatibility. In response, KING developed the HP Series featuring the Alecular™ metal structure.

The HP series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip and some levels of circle track racing.

All King Bearings are specifically engineered to withstand the highest loads and RPMs generated by today’s top competition engines. All King Performance Engine Bearings feature:
• *“Bull’s Eye Tolerance”*. King engine bearings have the closest wall tolerances in the industry, with all shells matched to 0.0001".
• *Increased Height.* Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM.
• *Improved Oiling.* Mains feature enlarged, chamfered oil holes.
• *Medium Eccentricity.* This enables optimum load distribution and improved oiling.
• *Dowel Holes.* Most rod bearings are available with or without dowel holes.
• *Narrowed Design.* Mains and rods are narrowed for large-radius crankshafts.

We offer the industry’s widest selection of sizes, including special clearance options. With more choices than ever, you’ll find the right King High Performance Engine Bearings for your most demanding applications.

*HP series is particularly suitable for the following cases:*
• When a tri-metal bearing’s Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft
• When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement
• When Contaminants enter the oil stream, scratching and damaging the crankshaft journals
*King HP Bearings Features*

*Applications*
• High-load, short-duration racing such as drag racing, tractor pulls, monster trucks, etc.
• Medium-load, long-duration racing such as circle track engines using nodular cast iron crankshafts

*Construction*
Bi-metal aluminum silicon alloy featuring fine micro-bore finish

*Features*
• 0.015" thick top layer for superior macro particle embedability and conformability
• 40 Vickers hardness to resist overlay migration and extrusion
• 450°F heat threshold for superior protection against friction and overheating
• Mains are 3/4 grooved for improved oiling to the rod journals


Additional Application Notes
• Optional MB5280SI Race Bearings Crankshaft Undersize-.026mm alecular (racing line)
• Windsor Motor; SOHC; 16Valve Optional MB5280SI Race Bearings Crankshaft Undersize-.026mm alecular (racing line)
• Windsor Motor; SOHC; 16Valve
• Windsor Motor; SOHC; 24Valve
• Windsor Motor; SOHC; 24Valve Optional MB5280SI Race Bearings Crankshaft Undersize-.026mm alecular (racing line)
• Windsor Motor; DOHC; 32Valve Optional MB5280SI Race Bearings Crankshaft Undersize-.026mm alecular (racing line)
• Windsor Motor; DOHC; 32Valve

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-10-13 19:17:46

Product Overview

The HP series was developed mainly for drag race applications needing a material that is harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short duration and still offer higher embedabilty and compatibility. In response, KING developed the HP Series featuring the Alecular™ metal structure. The HP series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip and some levels of circle track racing. All King Bearings are specifically engineered to withstand the highest loads and RPMs generated by today’s top competition engines. All King Performance Engine Bearings feature: * *“Bull’s Eye Tolerance”*. King engine bearings have the closest wall tolerances in the industry, with all shells matched to 0.0001". * *Increased Height.* Greater rod bearing height improves bearing-to-bore contact/heat transfer and reduces spin potential at high RPM. * *Improved Oiling.* Mains feature enlarged, chamfered oil holes. * *Medium Eccentricity.* This enables optimum load distribution and improved oiling. * *Dowel Holes.* Most rod bearings are available with or without dowel holes. * *Narrowed Design.* Mains and rods are narrowed for large-radius crankshafts. We offer the industry’s widest selection of sizes, including special clearance options. With more choices than ever, you’ll find the right King High Performance Engine Bearings for your most demanding applications. *HP series is particularly suitable for the following cases:* * When a tri-metal bearing’s Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft * When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement * When Contaminants enter the oil stream, scratching and damaging the crankshaft journals *King HP Bearings Features* *Applications* * High-load, short-duration racing such as drag racing, tractor pulls, monster trucks, etc. * Medium-load, long-duration racing such as circle track engines using nodular cast iron crankshafts *Construction* Bi-metal aluminum silicon alloy featuring fine micro-bore finish *Features* * 0.015" thick top layer for superior macro particle embedability and conformability * 40 Vickers hardness to resist overlay migration and extrusion * 450°F heat threshold for superior protection against friction and overheating * Mains are 3/4 grooved for improved oiling to the rod journals

Product Details

Additional Shell Thickness:TBA
Crank Undersized:-0.020in
Description:Main Bearing HP Series; Bi-Metal Performance
Material:alecular (racing line)
Part Number:kingMB5280HP.026
Size:0.25in (0.635mm)
Title:King Bearings
Undersize:0.026

Application Summary

FORD V8, 4.6L/5.4L SOHC

Part Type

Engine Crankshaft Main Bearing Set

Data: v4.2 - Upd: 2026-09-29 06:53:20

Specifications

Crankshaft Main Bearings FORD V8, 4.6L/5.4L SOHC

King HP-Series main bearings are recommended for street and strip performance applications. They're designed for blown, turbocharged, NOS, and alcohol-fueled engines using aftermarket crankshafts. These main bearings have greater eccentricity for superior oiling at high rpm, and a chamfered surface for large radii crankshafts. HP-Series bearings also feature large, chamfered oil holes—and are available in 1/2 grooving for improved oiling to withstand high-rpm applications. Order the bearings designed for fitment with your specific engine.

Product Attributes
BrandKing Engine Bearings
Manufacturer's Part NumberMB5280HP.026
Part TypeMain Bearings
Product LineKing HP-Series Main Bearings
UPC611500535079
Bearing UsagePerformance
Engine Crankshaft Undersize (in.)0.002 in.
Engine Crankshaft Undersize (mm)0.026mm
Grooved BearingYes
Groove LocationUpper
Groove Style1/2
Thrust Bearing OversizeStock
Bearing MaterialBi-metal, silicon aluminum
QuantitySold as a set.

Product Details

Additional Shell Thickness:TBA
Crank Undersized:-0.020in
Description:Main Bearing HP Series; Bi-Metal Performance
Material:alecular (racing line)
Part Number:kingMB5280HP.026
Size:0.25in (0.635mm)
Title:King Bearings
Undersize:0.026

Reference Information

Brand Name/s King Engine Bearings
StreetFX SKU kingMB5280HP.026
SFX Item ID 4294348
Supplier Item Code 4294348
Manufacturer SKU MB5280HP.026
Manufacturer UPC 611500535079
Alternative References kgb-mb5280hp0026, 4.6L/5.4L, +0.026mm

Compatibility

King Engine Bearings Ford Prod. V8 4.6L/5.4L Performance Main Bearing Set - Size +0.026mm
Year RangeMakeModelSubmodelsRegion
2005 Avanti Avanti Base US
1992-2011 Ford Crown Victoria Base, LX, S, Touring Sedan, Police Interceptor, LWB, LX Sport, Special Edition, Fleet US
2003-2014 Ford E-150 Base, Chateau, XL, XLT US
2003-2005 Ford E-150 Club Wagon Chateau, XL, XLT US
1997-2002 Ford E-150 Econoline Base, XL US
1997-2002 Ford E-150 Econoline Club Wagon Chateau, Custom, XLT, XL US
2003-2014 Ford E-250 Base US
1997-2002 Ford E-250 Econoline Base, XL US
2003-2005 Ford E-350 Club Wagon Chateau, XL, XLT US
1997-1998 Ford E-350 Econoline Base, XL US
1997-2002 Ford E-350 Econoline Club Wagon Chateau, Custom, XLT, XLT HD, XL HD, XL US
1999-2016 Ford E-350 Super Duty Base, XL, XLT, Chateau US
2000-2005 Ford Excursion Limited, XLT, Eddie Bauer, XLS US
1997-2014 Ford Expedition Eddie Bauer, XLT, XLS, NBX, XLT Sport, Limited, King Ranch, EL Eddie Bauer, EL Limited, EL XLT, Funkmaster Flex Edition, EL King Ranch, XL, EL XL US
2005 Ford Explorer XLS, XLT, Limited, Eddie Bauer, XLS Sport, XLT Sport US
1997-2010 Ford F-150 Base, Lariat, XL, XLT, Lightning, Harley-Davidson Edition, King Ranch, STX, FX4, FX2, Limited, THE 60TH ANNIVERSARY EDITION, Platinum, SVT Raptor US
2004 Ford F-150 Heritage XL, XLT, SVT Lightning US
1997-1999 Ford F-250 Base, Lariat, XL, XLT US
1999-2010 Ford F-250 Super Duty Lariat, XL, XLT, Harley-Davidson Edition, King Ranch, FX4, Cabela's US
1999-2010 Ford F-350 Super Duty Lariat, XL, XLT, King Ranch, Harley-Davidson Edition, FX4, Cabela's US
2005-2006 Ford GT Base US
1996-2004 Ford Mustang Base, SVT Cobra, GT, SVT Cobra R, GT Bullitt, Mach 1, SVT Cobra 10th Anniversary US
2007-2012 Ford Mustang Base, GT, Shelby GT500, Bullitt, Shelby GT500KR, Boss 302 US
1994-1997 Ford Thunderbird LX, Super Coupe US
2002 Lincoln Blackwood Base US
2006-2008 Lincoln Mark LT Base US
1998-2014 Lincoln Navigator Base, Luxury, Ultimate, L Ultimate, L Luxury, L US
1991-2011 Lincoln Town Car Cartier, Base, Executive, Cypress, Signature, Touring Edition, Jack Nicklaus, Tournament Edition, Anniversary, Cartier L, Executive L, Executive Protection Series, Ultimate, Ultimate L, Protection Series, Signature L, Signature Limited, Designer Series US
1994-1997 Mercury Cougar XR-7 US
1992-2010 Mercury Grand Marquis GS, LS, LSE, Limited Edition, Ultimate Edition, GSL US
2014-2015 Mobility Ventures MV-1 DX, LX, SE US
2011-2012 VPG MV-1 Base, Deluxe US

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

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