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#91031364
GM Disc/Drum Proportioning Valve for 3/8-24 Outlets
- This non-adjustable proportioning valve is similar to 70's GM valves and provides OEM appearance
- This block incorporates metering for front brakes and proportioning for rear brakes into one unit
- For use with disc front and drum rear brake systems
$111.99
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Product Summary
Universal Fit, Disc/Drum Brake System Type, Brass
- This non-adjustable proportioning valve is similar to 70's GM valves and provides OEM appearance
- This block incorporates metering for front brakes and proportioning for rear brakes into one unit
- For use with disc front and drum rear brake systems
- Hard lines are included to connect to a master cylinder with 3/8"-24 outlets both front and rear
- Two 3/8"-24 IFF outlets for the front brakes and one 9/16"-18 IFF outlet for the rear brakes
Key Specs
| Proportioning Valve Type | Fixed |
| Port Quantity | 3-Port |
| Material Type | Brass |
| Finish | Natural |
| Color | Natural |
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Return PolicySpeedway Motors 91031364 Details
Speedway Motors 91031364 Details
These proportioning valves are similar to what GM used on many cars in the 70s. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with front disc, rear drum brake systems.
Includes hard lines to connect to a master cylinder with 3/8"-24 outlets.
Item Details
For M/C with 3/8"-24 outlets.
Bottom Front Port: 3/8 "-24 IFF threads - goes to one front brakeTop Front Port: 3/8 "-24 IFF threads - goes to one front brake
Middle Top Port: 1/2 "-20 IFF threads - comes from master cylinder
Rear Top Port: 7/16 "-24 IFF threads - comes from the master cylinder
Rear Most Port: 9/16 "-18 IFF threads - goes to rear brakesBottom Front Port: 3/8 "-24 IFF threads - goes to one front brake
Top Front Port: 3/8 "-24 IFF threads - goes to one front brake
Middle Top Port: 1/2 "-20 IFF threads - comes from master cylinder
Rear Top Port: 7/16 "-24 IFF threads - comes from the master cylinder
Rear Most Port: 9/16 "-18 IFF threads - goes to rear brakes
Charts
910-31364 Instructions (PDF)
Guides & Documents
Speedway Motors 91031364 Specifications
Speedway Motors 91031364 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031364 |
| Brand | Speedway Motors |
| Proportioning Valve Type | Fixed |
| Port Quantity | 3-Port |
| Material Type | Brass |
| Finish | Natural |
| Color | Natural |
| GENERAL | |
| Brake System Type | Disc/Drum |
| Proportioning Valve Location | Left Mount |
| Thread Pitch | 3/8"-24 IFF | 9/16"-18 IFF |
| Outlet Fitting | Bottom front/Top front are 3/8"-24 IFF (to font brakes), Rearmost port is 9/16"-18 IFF (to rear brakes). |
| Pressure Safety Switch Included | Yes |
| Overall Length | 5.13" |
| Overall Width | 1.08" |
| Overall Height | 2.00" |
| Centerline of Holes | 2.69" |
| Notes | Includes hard lines with fittings, hardware, and bracket. This is a combo valve (metering for front/proportioning for rear) into one valve. Residual valves NOT built in. |
| Sold in Quantity | Kit |
Ratings & Reviews
4.5
35 Reviews
Customers have found the product to be easy to install, reliable, and dependable. Despite some reviews suggesting the need for more specific setup inclusions, many customers praised its perfect fit, high quality and great performance in various vehicle models. The product's effectivity in brake system upgrades and in conversion from drum to disc brakes has been attested by many users. A few reviews noted some leakage issues and lack of a certain tool in the kit. However, overall, the product has been described as a well-machined product that delivered on its promises and stood out from competitors.
Ratings & Reviews
4.5
35 Reviews
Customers have found the product to be easy to install, reliable, and dependable. Despite some reviews suggesting the need for more specific setup inclusions, many customers praised its perfect fit, high quality and great performance in various vehicle models. The product's effectivity in brake system upgrades and in conversion from drum to disc brakes has been attested by many users. A few reviews noted some leakage issues and lack of a certain tool in the kit. However, overall, the product has been described as a well-machined product that delivered on its promises and stood out from competitors.
4.5
35 reviews
5
26
4
5
3
2
2
0
1
2
Most Liked Positive Review
5.0
This product was well machined and mount
The product was delivered on time and was as described in the catalog. The installation well quickly with the valve body mounting right into the original OEM location and required no modification to existing brake lines. Good product
Most Liked Negative Review
3.0
Frustrating
This valve seems well built. However one very important component is missing from this kit and the instructions...a small tool that inserts into the warning light switch location. This tool allows you to bleed the system without tripping this valve. No mention of this critical step in the instructions. I learned the hard way. I cant believe this isn't part of the instructions. Other combination/proportioning valves I've seen since, include this tool.
Filter by Ratings
Great proportional valve
5.0
3 months ago
Smith
Central Ky
Verified
If you don't want to use a booster this is a great proportional valve
Would Recommend
I would buy this again
5.0
a year ago
Vic
Whittier,Ca
Verified
Used in a 1941?fprd coupe
Would Recommend
Would buy again
5.0
a year ago
51
Toledo,WA
Verified
Used this to upgrade to disc brakes in front on my 51 Chevy along with the master cylinder and power booster. Works great
Would Recommend
Great quality.
5.0
2 years ago
Babaloos pinstriping
San Bernardino ca
Quality was great. Install was easy.
Would Recommend
I recommend this product
5.0
2 years ago
1965 Chevelle
High Springs FL
Verified
The valve was easy to install and bleed out. No issues with working correctly
Would Recommend
yes
5.0
2 years ago
den
Hatch, Utah
Verified
fine
Would Recommend
Yes but it took some research and a lot of brake fluid even
4.0
3 years ago
Kenny
Newport News va
Verified
Added front brakes to a 1954 ford f100
Would Recommend
I would buy & recommend this product
5.0
3 years ago
chad
Boise Idaho
Verified
did exactly what it said it would do
Would Recommend
Great item I would buy this again
5.0
3 years ago
Daz
New Zealand
Verified
Nice easy to assemble kit
Would Recommend
Decent looking thing
4.0
3 years ago
jim
mn
Verified
Fit. But I Wish fitings could be included for specific setups. Had to hunt forever to find an adapter for one of the connections. I would have paid extra.
Would Recommend
Showing 10 of 35 reviews