Plain 1946-1953 Flathead Alternator Bracket
Plain 1946-1953 Flathead Alternator Bracket
Speedway Motors

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#91667910

Plain 1946-1953 Flathead Alternator Bracket

  • Bracket fits 1946-53 Ford Flathead V8 engines
  • Made from heavy duty steel for durability
  • Available in a plain or chrome plated finish
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Finish:

Plain

Chrome

$50.99

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Product Summary

6.59" Centerline of Holes, Steel, Zinc Plated

  • Bracket fits 1946-53 Ford Flathead V8 engines
  • Made from heavy duty steel for durability
  • Available in a plain or chrome plated finish
  • Designed to work with the two narrow-belt drive systems typical of the late 1950-53 Ford/Mercury passenger cars
  • Must use a different fan bracket on some 1945-48 applications
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Key Specs

MFG. Part #91667910
BrandSpeedway Motors
Material TypeSteel
FinishZinc Plated
See more specs

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Speedway Motors 91667910 Details

Just because you've got a vintage Flathead Ford V8 in your ride doesn't mean you're stuck with the antiquated charging system. Switching to a tried-and-true GM 1-wire alternator is a great upgrade for any Flathead-equipped vehicle with a 12-volt electrical system.

  • Bracket fits 1946-1953 V-8 engines
  • Heavy-duty steel construction
  • Can easily be painted to match your engine
  • Designed to work with the two narrow-belt drive system typical of late '50-'53 Ford/Mercury passenger cars
  • Will not work with single wide belts unless the alternator is modified (see Notes)
  • 3/8" I.D. hole for mounting the alternator
  • Tapped 7/16"-20 to mount to the engine

Application

  • 1946-1953 Flathead Ford V-8 engines with narrow two-belt drive systems
  • Can be used with wide single-belt configurations with some modification
  • Must use different fan bracket on some 1945-1948 applications

Charts

Speedway Motors 91667910 Specifications

KEY SPECS
MFG. Part #91667910
BrandSpeedway Motors
Material TypeSteel
FinishZinc Plated
GENERAL
Mounted Height5.50"
Overall Thickness.875"
Centerline of Holes6.59"
Centerline of Holes (Alternate)2.12"
Center to Center6.50"
Sold in QuantityEach
NotesMay need to cut 1/2" - 5/8" from wide mount boss on alternator case to use this on '49-'50 cars and '48-'52 trucks with 5/8" belts. Equal amount would have to be cut from supplied spacer.

Ratings & Reviews

4.6

66 Reviews

Overall Assessment

According to customer reviews, the product is praised for its solid build and good fit. It has been positively highlighted for its practicality for 12v conversions and confirmed to fit a multitude of vintage car models with little to no modifications needed. The bracket is sturdy and provides quality alignment, accommodating more modern alternator models effectively. Although some modifications may be needed for narrow belts or specific car models, the product still satisfactorily meets customer needs. Users recommend this product, often above others, for its strength, finish, easy installation, and affordability.

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4.6

66 reviews

5

54

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Most Liked Positive Review

5.0

The bracket was acceptable for its inten

Fit to the engine block was good. Drilled and tapped holes were well done. Overall fit and finish was quite good. If you intend to use the wide belt set up such as on some trucks then be prepared for some hand or machine work on the alternator threaded mount pad and reducing the length of the spacer tube in order to move the alternator rearward for belt alignment. The rear of the bracket that contacts the engine block could be milled down to move bracket back.

Most Liked Negative Review

2.0

Works... Sorta.

I had a similar bracket on my 1949 Fordor with the wide belts and it worked great. But this one on my 1950 with the narrow belts has issues. Using a standard gm one wire alternator, this bracket puts the alternator belt up against the fan pulley. I had to take half an inch off the alternator ear and the spacer to make it clear and it is still close. Now the alternator sits so far back it won't clear the front carb on my edelbrock 3 deuce intake. Wide belt cars should be fine, narrow belts beware.

Filter by Ratings

Alternator bracket

5.0

3 months ago

Flathead Rob

Colorado

Was easy to install and works like a charm to convert from generator to 1 wire alternator.

Would Recommend

What a great design! Love it

5.0

9 months ago

Ebluvr72

Spokane, WA

Verified

this gave me a great alternative to a generator or more expensive alternator that looks like a generator. Fit well and looks amazing?

Would Recommend

I would recommend this product.

5.0

a year ago

Dip stick

Alexandria, In.

Verified

This bracket worked well, on an old Fenton duel carb intake. Had to make minor adjustments to align belts. I would definitely buy it again.

Would Recommend

I would buy this again.

5.0

a year ago

Qwerty

Asdf

Verified

Added gm alternator to my 8ba ford flathead.

Would Recommend

As advertised

5.0

a year ago

Qwerty

Asdf

Verified

As advertised

Would Recommend

Alternator bracket for Ford flathead

5.0

a year ago

Jim

Upstate new york

Verified

Part fit perfect but you can't use the two original bolts as the threads are different you have to buy two new ones locally high quality part.

Would Recommend

Perfect fit

5.0

2 years ago

Ford52

Colorado

Easy mounting to flathead with fan assembly. The 1 wire alternator set up is so easy to set up and less maintenance using this bracket.

Would Recommend

Not OE spec threads

3.0

2 years ago

NA

NA

Verified

'52 Ford Alternator bracket..fits but the tapped holes are not OE specs and had to take the bracket to store to find bolts to fit..also a longer fan belt is needed as the bracket with alternator is taller than the original generator and bracket..waiting on the belt to see if it's gonna work correctly

Would Recommend

i would buy again

5.0

2 years ago

ken

30736

Verified

great for adding an altenator to you stock flatty

Would Recommend

Fits Well

5.0

2 years ago

George

Ontario, Canada

Verified

2nd time using product, works well

Would Recommend

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Showing 10 of 66 reviews

Questions & Answers

4 Questions • 6 Answers

will this fit a 1950 F1 truck

by sy

• 9 years ago

1 answer

View Answer

Will this bracket work with a Ford G1 alternator? I would like to use the Ford alternator along with a voltage regulator as i think it may work better with the Speedway wiring harness (PN 910-64017)i recently bought. Installing on a 1950 Ford Custom Deluxe fordor.

by oldbert

• 10 years ago

1 answer

View Answer

I purchased this alternator bracket and it fits the engine/fan bracket fine, but I purchased a GM 1-wire alternator(65 amp)and the casing on the alternator hits the prongs on the alternator bracket. Is this bracket designed for a specific alternator?

by Charlie

• 10 years ago

1 answer

View Answer

where is the spacer for the plain alt. brkt ?

by old coot

• 15 years ago

3 answers

View Answers

4 of 4 questions shown

Fitment

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 239 Ford Flathead V8

  • 221 Ford Flathead V8

  • 239 Ford Flathead V8

  • 239 Ford Flathead V8

  • 239 Ford Flathead V8

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