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1949-53 Ford Flathead Main Bearings

Specs
Sold in Quantity:
Set
Bearing Undersize:
.030"
1949-53 Ford Flathead Main Bearings
1949-53 Ford Flathead Main Bearings
1949-53 Ford Flathead Main Bearings
1949-53 Ford Flathead Main Bearings
1949-53 Ford Flathead Main Bearings
1949-53 Ford Flathead Main Bearings

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Details

Reviews (6)

Q & A (2)

What's in the Box

Info

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

  • Improves Crankshaft Finish: Silicon particles reduce/eliminate microscopic ferrite peaks on improperly ground/polished nodular cast iron crankshafts.
  • Wear Resistance: During engine operation, silicon particles round off crank journal high spots, reducing friction and related wear.
  • Improved oil clearance: Because of reduced wear, silicon bearings make it possible to maintain OE clearances over the life of the engine, which reduces operating noise, vibration, and excess oil flow.
  • Tolerance Control: All shells matched to ± .0001" vs. the competitions' ± .00025"
  • Temperature Threshold: Silicon bimetal material melts/flakes at 662° F vs. tri-metal at 365° F.
  • Corrosion Resistance: Defends against corrosion caused by unleaded fuels and moisture.
  • Environmentally Friendly: All KING silicon bimetal engine bearings are "Lead Free".
  • O.E. preferred material: Most O.E. engines today use and enjoy the benefits of silicon bimetal bearings.

Customer Reviews

Rated 4.8 out of 5 by 6 reviewers.
RATING BREAKDOWN
6 reviews
5 Stars
5
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

tenniesgrandpa
Verified Purchaser
altoona pa

perfect

December 20, 2015
Great
Yes, I recommend this product.
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Flat50
Verified Reviewer
Jupiter, FL

The best bearings at a great price

October 29, 2015
These are King bearings - the gold standard.
Yes, I recommend this product.
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Rick da stick
Verified Purchaser
Mandan N.D.

I like what they're selling.

October 28, 2015
I used plasti gauge to check the clearance, in my case the were .0030. to accommodate my crank.
Pros:
  • The Brgs Fit Great
Yes, I recommend this product.
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hans
Verified Purchaser
Spanish fork ut

speedway review

October 26, 2015
Great customer service
Yes, I recommend this product.
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Don
Verified Purchaser
Verified Reviewer
Greenfield Missouri

Flathead Ford Main Bearings

August 28, 2015
The bearings were of quality hardware and fit perfectly on the block, caps and crankshaft. Oil holes were also lined correctly. Would recommend to others.
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webbomeister
Verified Purchaser
Macon, Ga

great quality.............superior produ

March 01, 2015
I've never been disappointed with any of the items i've purchased from speedway............way out-of-the-way service!! Technical assistance has also been superb even tho' your survey specifically said to NOT write about this............Main bearing set was exactly what I was looking for!!
Pros:
  • superior
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

2 questions : 2 answers

1 answers

Hello; is it adaptable on french ford vedette 49 to 53 ? tell me ID, OD and width please thanks

Dominique
france
September 24, 2012

Hello; is it adaptable on french ford vedette 49 to 53 ? tell me ID, OD and width please thanks

Answers

September 26, 2012
John
The French blocks do accept many US flathead components. The 49-53 French blocks use the early crankshaft main bearings such as number 9101535 plus size, then they use the later rod bearings such as number 91015361 plus size. Recent information confirms that the French blocks will accept the US valve train components including the lifters. On the gaskets the French block uses the earlier gasket set for the lower and for the heads and gaskets uses the later 49-53. Our camshafts can also be used.
1 answers

Do you have Bearings for 1949 - 53 Sidevalve V8 Ford Motor. Main Bearings 30 thousand" under. Big end bearings 40 thousand" under. Piston rings 4ring 3 3/16th 30 thousand" over.

Sue Jones
Nelson, New Zealand
July 10, 2011

Do you have Bearings for 1949 - 53 Sidevalve V8 Ford Motor. Main Bearings 30 thousand" under. Big end bearings 40 thousand" under. Piston rings 4ring 3 3/16th 30 thousand" over.

Answers

July 14, 2011
John
Currently the Main bearings are only offered in STD, 10, or 20 undersize. Rod bearings are offered in STD, 10, 20, and 30 under. Our piston rings in 4 ring design are available for 3.248 or 3.313 bore size which is .060 and .125 oversize.
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