1940-1948 Chevy Car Master Cylinder & Frame Rail Mount

#91631948

1940-1948 Chevy Car Master Cylinder & Frame Rail Mount

Name: 1940-1948 Chevy Car Master Cylinder & Frame Rail Mount
Brand: Speedway Motors
SKU: 91631948
Price: 218.99 USD
Availability: LimitedAvailability
Rating: 3.6 (8 reviews)

8 Reviews

2 Questions

The ideal combination for a clean and simple 1940-1948 Chevy passenger car brake system
The 1" bore master cylinder is suitable for 4-wheel disc or disc/drum brake setups
Kit includes a dual feed master cylinder, frame bracket, steel pedal arm that can be easily modified for driver comfort and hardware

$218.99

/kit

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Product Summary

Frame Position, Disc/Drum Brake System Type

The ideal combination for a clean and simple 1940-1948 Chevy passenger car brake system
The 1" bore master cylinder is suitable for 4-wheel disc or disc/drum brake setups
Kit includes a dual feed master cylinder, frame bracket, steel pedal arm that can be easily modified for driver comfort and hardware
Frame rail pedal mount
Assembly required

Comes as a Kit

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Key Specs

MFG. Part #	91631948
Brand	Speedway Motors
Brake System Type	Disc/Drum
Master Cylinder Bore Size	1 Inch
Reservoir Type	Integral

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Speedway Motors 91631948 Details

The ideal combination for a clean and simple 1940-1948 Chevy passenger car brake system. The 1" bore master cylinder is suitable for 4-wheel disc or disc/drum brake setups. The bracket can be bolted or welded to the left frame rail (boxed or stock).

Kit includes a dual feed master cylinder, frame bracket, steel pedal arm that can be easily modified for driver comfort and hardware.

Learn more about selecting the proper master cylinder for your vehicle by reading our tech article.Brake System Selection.

Item Details

Frame Rail Pedal Mount

Charts

916-31948 Instructions (PDF)

Brake System Builders Tip (JPG)

Guides & Documents

Master Cylinder/Pedal Kits Installation Instructions (91631948)

Effects of Master Cylinder Bore Size on Your Brake System

Master Cylinder/Pedal Kits Technical Information (91631948)

Pipe Weld Bung Fittings Sizing Chart (6176702)

Speedway Motors 91631948 Specifications

KEY SPECS
MFG. Part #	91631948
Brand	Speedway Motors
Brake System Type	Disc/Drum
Master Cylinder Bore Size	1 Inch
Reservoir Type	Integral

GENERAL
Position	Frame
Master Cylinder Mount Type	Reverse
Pedals Included	Brake
Master Cylinder Count	1
Outlet Count	Tandem
Outlet Fitting	3/8"-24 IFF
Outlet Fitting 2	3/8"-24 IFF
Finish	Natural
Centerline of Holes	3.25"
Pedal Length	11"
Brake Booster Included	No
Balance Bar	No
Sold in Quantity	Kit
Notes	Includes master cylinder, threaded bung, and pedal with pad.

Ratings & Reviews

3.6

8 Reviews

Overall Assessment

The product seems to be of high-quality craftsmanship, with a well-built mounting bracket and pedal arm, along with a thick metal pedal. The master cylinder is considered large compared to the space usually allocated for it. Some customers did have to modify their cars or the product for it to fit well since there are issues aligning in select models, particularly the 1941 and 48 Chevy Coupes and Fleetlines. However, it fits perfectly on a 40 Chevy Coupe. Despite the mounting difficulty, customers praise it for being of great value, a solid construction, and a fair price. It is recommended for automatic transmission applications.

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3.6

8 reviews

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Worked Good for my 1941 Chevy Coupe

5.0

7 years ago

1950chevytruck

Darlington PA

Verified

I Had to Drill out the Brake Pedal for the Pad Stud to Fit in , Was Supposed to be a Kit , i Don't think i Should have Had to Drill out the hole

Would Recommend

1.0

8 years ago

Richie

Pamplico, sc

Verified

Will not fit on a 48 chevy car, can notch bracket to get correct mounting position. Then the master cylinder will not fit. Very poor design. Got a call in to return. Even paid extra shipping to get sooner, I am very disappointed.

Make sure you have the room!!

3.0

9 years ago

Jay

Lusby MD

I was super excited to get this installed. The mounting bracket and pedal arm are extremely well built. I did have a number of issues. First, when attempting to get the mount lined up I wasn't able to get the pedal arm through the floor pan, I have my engine and trans in and there is no way to move the arm through the pan with the installed. I had to cut the hole a tad bit larger to get the pedal arm through the pan so I could get the swing set correctly before bolting the bracket in. Once I was able to get the pedal arm through I found that the mounting bracket couldn't be aligned right on the frame without modifying it. Aftet I got the arm swing set and bracket alighned on the frame I placed the master cylinder in the mount and found that the master cylinder is huge in compared with the space I have available. The master cylinder is too high for the floor pan brace and too long and high for the crossmember. There is no way for this to be installed on the 48 Fleetline without removing the crossmember for the master cylinder installed. The mount can be used with another master cylinder such as the Wilwood 260-7563 or modifying the frame.

Would Not Recommend

well constructed.

3.0

10 years ago

Dick lambert

Bakersfield ca

Verified

When installing on a 48 fleetline I had to trim the foreword face of the bracket. so the master cylinder would not contact the bottom of floorboard or support brace. You'll see what I mean when you install master cyl.

Would Recommend

everything was what i expected, and the cost was great

4.0

10 years ago

Old 48

Cedar, British Columbia, Canada

Verified

The service was great and very prompt delivery,and no problems at all on returning items which i couldn't use.

Would Recommend

under floor brake assembly

5.0

11 years ago

shawn

phoenix az

Verified

I used it on my 40chevy coupe,fit like a glove,i wish it would have come with a square pad

Would Recommend

Great setup for the right application

4.0

15 years ago

North

Des Moines, IA

Verified

This product is well made and average difficulty to install. It is more useful in automatic transmission applications.

Would Recommend

This product is particularly good value

4.0

16 years ago

physcult

London UK

Pedal is nice quality thick metal and master cylinder matches well to a basic, stock item.

Would Recommend

Showing 8 of 8 reviews

Questions & Answers

2 Questions • 2 Answers

Sort Questions

what is the pedal ratio? Lever Ratio if you will?

by Mod Point

• 9 years ago

1 answer

View Answer

What is the physical (LxWxH) size of the master cylinder in this kit?

by SKOONS Hot Rods

• 15 years ago

1 answer

View Answer

2 of 2 questions shown

Fitment

1941 Chevy AJ

1943 Chevy BG

1942-1946 Chevy BK

1946 Chevy CK

1941-1948 Chevy Fleetline

1941-1948 Chevy Fleetmaster

1940 Chevy Master 85

1947-1948 Chevy Sedan Delivery

1940-1942 Chevy Special Deluxe

1946-1948 Chevy Stylemaster Series