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King Engine Bearings MB5283HPSTDX HP Series Main Bearing Set Standard Size Ford V8 4.6L DOHC SOHC

(Ford Grand Marquis 1995-2004, F-150 1997-2003, 2009-10, Mustang 1996-2010, Explorer 2002-10, Expedition 1997-2004, F-250 1997-2009 + 20 more models)

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB5283HPSTDX
10 reviews
Sale Price

$141.43

Estimated ship date Wednesday, December 02

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Product Details

The King Engine Bearings MB5283HPSTDX is an HP Series main bearing set designed for the Ford V8 4.6L DOHC/SOHC 24-valve engine. Built around King's proprietary Alecular bi-metal aluminum silicon alloy construction, the HP Series delivers a harder top layer than traditional Babbitt tri-metal bearings, making it the preferred choice for high-load, short-duration racing applications as well as medium-load, long-duration performance use with nodular cast iron crankshafts.

HP Series Design and Applications:

  • Engineered for drag racing, tractor pulls, monster trucks, and other high-load, short-duration competition
  • Well-suited for circle track and street/strip applications with nodular cast iron crankshafts
  • Ideal replacement when a tri-metal bearing's Babbitt overlay has extruded, migrated, or been physically displaced by the crankshaft journal
  • Recommended when intermediate layer exposure has damaged crank journals or when oil stream contaminants have scratched bearing surfaces

Construction:

Bi-metal aluminum silicon alloy with a fine micro-bore finish for consistent oil film retention and superior surface contact.

Key Specifications:

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

King HP Series Performance Features:

  • Bull's Eye Tolerance: Wall tolerances held to within 0.0001", with all shells matched for precise fit
  • Increased Bearing Height: Greater shell height improves bearing-to-bore contact, enhances heat transfer, and reduces spin potential at high RPM
  • Improved Oiling: Enlarged, chamfered oil holes on main bearings for maximum oil flow
  • Medium Eccentricity: Optimizes load distribution and promotes consistent lubrication
  • Dowel Holes: Available with or without dowel holes to suit a wide range of builds
  • Narrowed Design: Mains and rods are narrowed to accommodate large-radius crankshafts

King Engine Bearings offers the industry's widest selection of sizes, including special clearance options, so builders can find the exact specification needed for even the most demanding performance applications.

Products specifications

Fits

Ford Grand Marquis 1995-2004, F-150 1997-2003, 2009-10, Mustang 1996-2010, Explorer 2002-10, Expedition 1997-2004, F-250 1997-2009, Explorer Sport Trac 2007-10, E-150 2003-09, E-250 2003-08, E-150 Econoline 1999-2002 + 16 more models

Additional Shell Thickness

-.0005in

Crank Undersized

0

Size

Standard

Material

alecular (racing line)

Flange Oversize

FL STD

Undersize

STDX

Had the product I needed at a price that couldn't be beat. The shipping was a little high, but not completely out of line, either, and it was still better than other companies who have even MORE ridiculous shipping rates. Will buy from them in the future if they have what I need.

Great price on a great product! The Thule Raceway 9002 3-bike trunk-mounted rack is what I purchased. Shipping was fairly quick and the product was new, in original packaging and was a great deal compared with other sites for the same product! Would order again!

Took a long time to ship. But was a great deal for the price of the product will order again.

Was linked here by Amazon. I found the absolute best price on the item I was looking for, I had a confirmation as soon as I ordered it, and shipping as prompt. I would definitely recommend these guys and will be shopping here myself in the future.

smooth transaction. good seller.

"Excellent price and great customer service. Order was shipped promptly!! Would do business with them again. "

Very fast shipping and product was secure in package to avoid damage....will be ordering from autoplicity again for sure. Also the price could not be beat.

Ordered a Trac-Bar from Autoplicity, and didn't have any problems. WILL be back!

Great prices, reasonable shipping costs. Shipped within 3 days of order. Didn't receive discount for valid coupon code (25OffShipping). No response to 2 emails. No indication of expected delivery date. Lots of unknowns but you can't beat the pricing.

Item arrived promptly (4 days after order), price was good and item was as described.

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