Product Summary

  • Ford '38-'45 or '46-'53 engines
  • Heavy duty steel
  • Chrome or plain finish
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Key Specs

MFG. Part #91667909
BrandSpeedway Motors
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91667909 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 w/ chrome plating
  • 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)

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 91667909 Specifications

KEY SPECS
MFG. Part #91667909
BrandSpeedway Motors

Ratings & Reviews

4.9

8 Reviews

Overall Assessment

Customers commend the product for its perfect fit and impressive looks, notably on the Flat head V8. The product's installation is user-friendly with helpful modification instructions. Quality-wise, the product is highly rated by users, described as a well-crafted bracket and plenty heavy-duty for mounting a GM alternator. Some users, however, note the need for extra planning for certain adjustments i.e., belts, bolts, and the optional wider "truck" pulley. Consequently, they recommend checking your specific requirements before purchasing. Importantly, the product stands out for fulfilling its primary function excellently—mounting an alternator.

4.9

8 reviews

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7

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Service as expected, product as described.

5.0

2 months ago

Obie

Boise ID

Verified

Mine is a work in progress. The parts I purchased from Speedway are mounted, look great, and are ready to go. The 'go' part is sometime in the future?

Would Recommend

I would certainly buy this part again if needed

5.0

3 months ago

Smitty

Wainwright Alberta Canada

Verified

Fit perfectly as it should

Would Recommend

Very nice fit perfect on my Flat head V8

5.0

3 years ago

KennyG

Hicks, la

Verified

Every thing was perfect

Great product

5.0

6 years ago

Chris

Nashville, TN

Verified

Bolted right up and look great

Would Recommend

I would by this product again

5.0

6 years ago

Macca

Auckland New Zealand

Verified

Perfect fit looks good

Would Recommend

Yes

5.0

6 years ago

Jay

San Ramon ca

Verified

Great

Would Recommend

Be advised.

5.0

11 years ago

bompaben

Undisclosed

This is as nice a product as I have seen, and the instructions for modifications for proper alternator fit that come with the bracket are spot on. However, I bought this along with the optional wider "truck" pulley,with intentions of using this with the truck style water pumps and crank pulley. I also used the wider truck application fan hub. Be advised, the stock belts won't fit! I finally went to my local auto parts supplier and got a selection of differing length belts, and played around with them to get a set that would work. A lot of fartin' around, but I'm very pleased with the result. My rating is for the quality of the part and instructions. Just wish there was some sort of notice in the listing about belt fitment issues.

Would Recommend

Good Product.

4.0

14 years ago

IronDuke

Burleson,TX

Verified

This bracket is plenty heavy duty for mounting a GM alternator. Be advised the holes are threaded 7/16 x 14tpi, so the original bolts on your generator mount likely won't fit. You'll need to source new bolts. I picked up some stainless bolts locally. Before you buy this bracket, make sure you do not intend to mount an A/C compressor. If you will want to upgrade to A/C, there are brackets available that mount the alternator and compressor side by side, and this bracket would be made useless. If you only want to mount the alternator, this bracket is a good value.

Would Recommend

Showing 8 of 8 reviews

Questions & Answers

2 Questions2 Answers

I found that the single wide belt was to short after installing and aligning alt.Now I am haveing trouble finding a longer belt to fit. I replaced the two stock water pumps with speedway pumps (wide belt pullie stock type) intending to keep a single wide belt. Do you sell a longer belt that will fit the gm alt system?

by MW52

12 years ago

1 answer

I have a 49 ford with a flathead and I have two belts. One is 5/8" and the other 3/4". Will I have to modify this bracket or will it just bolt on? The notes confused me because they say 2 narrow belts. Thanks in advance.

by Al

15 years ago

1 answer

2 of 2 questions shown

Fitment

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  • 221 Ford Flathead V8

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Customer Impersonation Script