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#91664001
Speedway 55-58 Chevy Power Disc Brake Kit, 11 in. Standard Disc Brakes
- Our 11" disc brake conversion kit makes it easy to convert your old drum brake setup to standard disc brakes on GM full size cars
- This full size disc brake conversion kit won't require you to swap out spindles, saving you time and money
- Comes with 11" cast iron forged rotors, loaded GM calipers, hoses, and all required hardware, seals, & bearings
$643.99
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Product Summary
Front Position, 11 Inch Rotor Diameter, Natural
- Our 11" disc brake conversion kit makes it easy to convert your old drum brake setup to standard disc brakes on GM full size cars
- This full size disc brake conversion kit won't require you to swap out spindles, saving you time and money
- Comes with 11" cast iron forged rotors, loaded GM calipers, hoses, and all required hardware, seals, & bearings
- Also includes our GM full size 8" dual diaphragm zinc power brake conversion kit for full braking power and detailed instructions for a painless install
- Fits 1955-58 GM Full Size (Impala, Bel Air, Biscayne) using 15" or larger wheels and will increase track width by 1-3/4" (7/8" per side)
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 91664001 |
| Position | Front |
| Wheel Bolt Pattern (in.) | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x120.65 mm |
| Rotor Diameter | 11 Inch |
Need To Know
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Speedway Motors 91664001 Details
Our all-inclusive disc brake conversion kit makes it easy for the budget minded hot rod enthusiast to convert their drum brakes to disc brakes. The GM full size kits don't require you to swap out spindles saving you time and money. This kit will come with everything you need to swap out your drum brakes for disc brakes. The included power brake conversion gives you full braking power.
Full Size Chevy 1955-58 Complete Stock Height Kit Includes
- 11" Rotors
- Loaded Large GM Calipers
- Caliper Brackets
- Hoses with Banjo Bolts
- Bearings
- Seals
- Dust Caps
- Spindle Nuts
- Spindle Washers
- All Hardware
1955-1958 GM Full Size 8" Dual Zinc Booster Conversion Kit (Impala, Bel Air, Biscayne)
- 1" Bore Dual Bail Cast Iron Master Cylinder
- Proportioning Valve Kit for Left Mount
- 8" Dual Booster w/ Firewall Brackets
- Pedal Extension & Clevis
Charts
Speedway Motors 91664001 Specifications
Speedway Motors 91664001 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91664001 |
| Brand | Speedway Motors |
| Position | Front |
| Wheel Bolt Pattern (in.) | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x120.65 mm |
| Rotor Diameter | 11 Inch |
| Rotor Type | Vented |
| Caliper Pistons | One |
| Caliper Finish | Natural |
| Parking Brake Provision | No |
| Minimum Recommended Wheel Diameter | 15 Inch |
| Rotor Shape | Round |
| Hardware Included | Yes |
| Rotor Style | Plain Face |
| Front Rotor Included | Yes |
| Front Rotor Diameter | 11 Inch |
| Front Caliper Included | Yes |
| Rear Caliper Included | No |
| Front Spindles Included | No |
| Master Cylinder Included | Yes |
| Brake Booster Included | Yes |
| Brake Hoses Included | Yes |
| Rear Rotor Included | No |
| Bolt Pattern | 5 on 4.75" |
| Color | Natural |
| Mounting Bracket Included | Yes |
| Front Caliper Finish | Natural |
| Application Type | Disc/Drum |
| Front Caliper Piston Quantity | 1 |
| GENERAL | |
| Rotor Thickness | 1" |
| Front Caliper Material | Cast Iron |
| Front Caliper Piston | Single Large Piston |
| Brake Booster Diameter | 8 Inch |
| Brake Booster Material | Steel |
| Brake Booster Type | Vacuum Diaphragm Dual |
| Brake Hose Material | Rubber |
| Master Cylinder Bail Type | Dual Bail |
| Master Cylinder Bore Size | 1 Inch |
| Master Cylinder Finish | Natural |
| Master Cylinder Material | Cast Iron |
| Master Cylinder Port Sizes | 9/16-18" & 1/2-20" |
| Proportioning Valve Location | Left Mount |
| Brake Booster Bracket Finish | Zinc |
| Brake Booster Finish | Zinc |
| Brake Pedal Rod Included | Yes |
Ratings & Reviews
4.5
6 Reviews
Customers appreciate our product for its quality and practicality. The installation process is generally described as easy, signifying great usability. The effectiveness of the brake system is frequently praised, highlighting its superior performance. Some customers wish extra bolts and nuts were included but overall, they recommend our product over others for its reliable function and premium quality.
Ratings & Reviews
4.5
6 Reviews
Customers appreciate our product for its quality and practicality. The installation process is generally described as easy, signifying great usability. The effectiveness of the brake system is frequently praised, highlighting its superior performance. Some customers wish extra bolts and nuts were included but overall, they recommend our product over others for its reliable function and premium quality.
4.5
6 reviews
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Yes I would buy the product again
5.0
19 days ago
Jeffro
Finksburg md
Verified
I have not installed yet but it looks like good quality items
Would Recommend
supurb product.
5.0
9 months ago
Doug
Orland Maine
Verified
easy assembly, quality parts, ideal!
Would Recommend
if needed
5.0
a year ago
JP
Mo.
Verified
getting ready to install
Would Recommend
Cheap parts
2.0
a year ago
Bowfish
Illinois
Verified
Quality of the parts are not that great was missing some hardware first the brake booster failed and it was replaced then four months later a caliper failed and it was replaced. Speedway motors. Customer service is totally awesome, but the parts in this kit are of low quality compared to the other kits that I have put on other cars Installation was very simple and straightforward
Would Not Recommend
super fast shipping
5.0
2 years ago
Joker
Ia
Verified
Great kit easy install Thanks Speedway
Would Recommend
Would order from speedway again
5.0
4 years ago
Bob
Ky.
Verified
All was great with brake system. Could have included extra bolts, and nuts in case of loosing one
Would Recommend
Showing 6 of 6 reviews
Questions & Answers
Questions & Answers
3 Questions • 3 Answers
What is a replacement brake pad P/N for these? Thanks
by Donivan
• a year ago
1 answer
View Answer
Will factory 1955 15" wheels fit with these rotors and calipers?
by 1955 Jay
• 3 years ago
1 answer
View Answer
What 2 inch dropped spindle will work with this brake kit part # 91664001
by Doug
• 7 years ago
1 answer
View Answer
3 of 3 questions shown
Fitment
Fitment
1955-1958 Chevy Bel Air
1958 Chevy Biscayne
1958 Chevy Brookwood
1957-1958 Chevy Del Ray
1955-1958 Chevy Nomad
1955-1957 Chevy One-Fifty Series
1955-1957 Chevy Two-Ten Series