SKU: 80487054540

King Engine Bearings Main Bearing Set for 1971-1973 GMC Sprint (MB 557XPC 020)

Sale price$152.41 Regular price$169.35
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

King Engine Bearings Main Bearing Set for 1971-1973 GMC Sprint (MB 557XPC 020)Todays sport compact race engines make more power than ever before. Yesterdays engine bearings load capacity no longer works for todays sport compact race engines. Tomorrows engines will be even more powerful. King bearings meet these demands with higher performance benchmarks, advanced materials and unique geometrical features. King Racings SV, GPC, XP, and XPC series of rod and main bearings were developed to meet these challenges through

Today’s sport compact race engines make more power than ever before. Yesterday’s engine bearings’ load capacity no longer works for today’s sport compact race engines. Tomorrow’s engines will be even more powerful.

King bearings meet these demands with higher performance benchmarks, advanced materials and unique geometrical features.
King Racing’s SV, GPC, XP, and XPC series of rod and main bearings were developed to meet these challenges through technologically advanced geometrical features and a unique metal structures. Together, they drive the industry to a higher level of durability, performance and expectation.

King’s new pMaxKote is a nano-composite polymer coating. It is applied over the pMaxBlack overlay at the King factory as part of the bearing manufacturing process. It enhances wear resistance without changing the bearing’s original precision wall thickness dimension.

King’s pMaxKote is a new approach to coated bearings. It has proven to protect bearings during metal-to-metal contact, as well as from the erosive effects of cavitation. It contains ceramic nano-composite particles that function as a fourth layer that provides superior build protection.

pMaxKote enhances the following benefits of King XP race bearings:

  • Superior seizure resistance
  • Superior cavitation resistance
  • Superior wear resistance
  • Superior protection against oil starvation

The intermediate layer of a typical race bearing contains 2-3% tin, with hardness values of 90-95 HV. For a superior pMaxBlack intermediate layer, we increased the tin content to 4.5%, making it 22% harder at 115 HV, with a load carrying capacity of 17,000 psi.

The overlay of a typical high performance bearing consists of a leaded alloy that contains 2-3% copper. It achieves a hardness level of 11 – 14 HV, and a maximum load capacity of 8,000-8,500 psi.

King’s pMax Black overlay is significantly stronger than conventional overlays due to its 5% copper content and an innovative nano-scaled hardening process.



Check your bearing size using our fitment calculator here

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 80487054540

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4.2 ★★★★★
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Anna S
San Leandro, US
★★★★★ 3
Looks nice, but rusted after 6 months of use
Color: Black
The caddy was aesthetically pleasing, with enough room to hold my dish soap, hand-soap and sponge as well as a brush. I really love how it looks, but only after 6 months of using this, the wires in the holder is already rusted. It looks nice but not really of good quality.
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Reviewed in the United States on February 2, 2026
C
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Clarence Wakefield
Lowell, US
★★★★★ 5
Works as expected
Color: Mattle Black
It does exactly what it is supposed to do. No water collection on the sink and hold several of my kitchen cleaning items. It holds 3 sink stoppers a sponge and a scrubbers and a soap dispenser.
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Reviewed in the United States on March 26, 2026
J
Verified Purchase
Jacob G.
Waukegan, US
★★★★★ 5
Great Value
Color: Silver Grey
Well constructed and looks great. Drains water quickly fits perfect on the sink. Easy to clean. N8ce little product.
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Reviewed in the United States on February 16, 2026
J
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John O.
Alexandria, US
★★★★★ 5
Does the job
Color: Mattle Black
Kinda cool and does the job and cheap. Nice product
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Reviewed in the United States on April 2, 2026
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B. Naranjo
Draper, US
★★★★★ 4
works well and sturdy
Color: Silver
work well, keep my sink from getting "slimy" corners and soap buildup
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Reviewed in the United States on May 27, 2026

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