Product Summary

  • Premium replacement rod bearings for '49-'53 Ford flathead engines
  • High quality aluminum bi-metal construction, Bi-metal withstands 662° F (350° C) compared to tri-metal 365° F (185° C). Affords greater protection against localized overheating due to misalignment, detonation, overloading, loss of coolant
  • Superior Embed-ability, material is much thicker than Babbitt overlays (.012" vs. .0008"). This provides greater macro-particle (> .0004" diameter) embed-ability. Macro particles are most responsible for scratching crank journals & tearing/weakening Babbitt overlays
  • Excellent conformability, minimum depth of .012" enables greater adjustment to bore or journal misalignment without causing bearing failure or journal damage
  • Tolerance Control is ± .0001" vs. the competitions' ± .00025" and available in standard, .010", .020" and .030" undersized to fit your needs
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Key Specs

MFG. Part #
BrandSpeedway Motors
Rod Journal Diameter2.138"
Bearing Undersize
Narrowed BearingNo
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Need To Know

Quick and Easy Returns

Return Policy

Details

Speedway Motors has all the parts you need to rebuild your Flathead Ford V8, including these high quality aluminum bi-metal rod bearings. Precision built to the high standards demanded by today's rodders and restorers, these insert-style bearings are available in standard size, .010", .020", or .030" undersize.

  •  Tolerance Control: ± .0001" vs. the competitions' ± .00025"
  • Superior Embedability: Material is much thicker than Babbitt overlays (.012" vs. .0008"). This provides greater macro-particle (> .0004" diameter) embedability. Macro particles are most responsible for scratching  crank journals & tearing/weakening babbitt overlays.
  • Temperature Threshold: Bi-metal withstands 662° F (350° C) compared to tri-metal 365° F (185° C). Affords greater protection against localized overheating due to misalignment, detonation, overloading, loss of coolant, etc.
  • Conformability: Minimum depth of .012" enables greater adjustment to bore or journal misalignment without causing bearing failure or journal damage.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #
BrandSpeedway Motors
Rod Journal Diameter2.138"
Bearing Undersize
Narrowed BearingNo
GENERAL
Sold in QuantitySet

Ratings & Reviews

4.8

31 Reviews

Overall Assessment

Customers perceive the product as high quality, with many highlighting its precise fit, durable material, and easy installation. They also note that these king bearings appear superior and more consistent in weight, signifying good manufacture control. Customers find them excellent for personal projects, such as building engines, especially the flathead v8. Some customers mention these bearings are better than the originals, implying greater performance and reliability. The comparison to competitors shows our product is of superior quality and cost-effective. Several customers assert they would repurchase due to the product's value and results.

4.8

31 reviews

5

26

4

5

3

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Would buy again

5.0

a year ago

Freddyfairlane

Winnipeg

Verified

Good quality work as it should

Would Recommend

Very good product

5.0

a year ago

Eric

Napierville, Québec, Canada

Verified

Very satisfied with the product

Would Recommend

perfect product.

5.0

a year ago

Rickrace

Napierville Québec Canada

Verified

Fits perfectly, good quality product.

Would Recommend

Good parts right price

5.0

3 years ago

Bryan Stutz

Bothell, Wa

Verified

Thank you!!

Would Recommend

Yes

5.0

3 years ago

Dobie

Arden Hills, MN

Verified

Same as the main bearings

Would Recommend

yes

5.0

4 years ago

(Drip), I can drive people insane look-i

PA

just a weekend summer driver, they seem fine

Would Recommend

I would buy this product again.

5.0

5 years ago

Mechanic Rick

Nevada, No.

Verified

Building this flathead v8 myself and needed crank bearings and Speedway had them. Excellent bearings.

Would Recommend

Very good quality and fit

5.0

5 years ago

Trailtoo

Salem

Verified

Precision fit

Would Recommend

Yes

4.0

5 years ago

None

New zealand

Verified

Bearings

Would Recommend

Very nice product

5.0

6 years ago

Ken Kelsey

Utah

Verified

Look very good would buy again

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Showing 10 of 31 reviews

Questions & Answers

1 Question • 1 Answer

will these bearings fit a crank that has been turned to .010 under std.

by Richard

• 9 years ago

1 answer

1 of 1 questions shown

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