JEGS
Power Brake Booster Conversion Kit 1 1/8 in. Bore [Disc/Disc]
555-631014
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![Power Brake Booster Conversion Kit 1 1/8 in. Bore [Disc/Disc]](http://www.jegs.com/images/photos/500/555/555-631014.jpg "Power Brake Booster Conversion Kit 1 1/8 in. Bore [Disc/Disc]")
Universal
This JEGS Power Brake Booster and Master Cylinder Conversion Kit is a great add on when converting your car to dual disc brakes.The Dual Diaphragm Booster along with the Dual Reservoir Master Cylinder will help to give you that extra stopping power. Brilliant Chrome Plating will enhance the look of your engine compartment with style.
Kit Includes:
- (1) Chrome Plated 8 in. Dual Diaphragm Power Brake Booster
- (1) Chrome Plated Aluminum Oval Flat Top Dual Reservoir Master Cylinder with 1 1/8 in. Bore
- (2) Chrome Plated Booster to Firewall Mounting Brackets
- (1) Pedal Rod Extension and Clevis
- (1) Power Booster Vacuum Hose Connetor
- (1) Chrome Plated Disc/ Disc Left Mount Proportioning Valve Kit with (2) 3/8 in.-24 Front Brake line connections, (1) 9/16 in.-18 Rear Brake Line Connection
- (1) Chrome Plated Proportioning Valve Mounting Bracket and Mounting Bolts
- (2) Stainless Steel Master Cylinder to Proportioning Valve Brake Lines
- (1) Brake Light Warning Switch with Push on Connector and Wire
Specifications:
Part Type
Bowl Design
Dual
Brake Booster Finish
Chrome
Brake Booster Material
Steel
Brake Booster Type
Dual Vacuum diaphragm
Brake Pedal Rod Extension Included
Yes
Master Cylinder Cap Included
Yes
Master Cylinder Finish
Chrome
Master Cylinder Material
Aluminum
Mounting Hardware Included
Yes
Quantity
Sold as an Assembly
Reservoir Included
Yes
Reservoir Material
Aluminum
Master Cylinder Included
Yes
Front Brake Type
Disc
Rear Brake Type
Disc
Booster Mounting Bracket Included
Yes
Brake Booster Included
Yes
Mounting Hole Quantity
4 holes
Brake Booster Diameter
8 in (203.2 mm)
Master Cylinder Bore Size
1.125 in (28.575 mm)
Master Cylinder Stroke
1 in (25.4 mm)
Shipping Weight:
20.95
Package Height:
14
Package Depth:
15.5
Package Width:
15.4
Part Category:
Replacement Parts
Part Fitment:
Semi Universal
631014 is rated
out of
5 by
22.
Rated 5 out of
5
by
Danny69SS from
Neat features
When I purchased this a month ago, my delivery was canceled because it was damaged during transport. I informed Jegs immediately and a replacement was shipped right away without question. Installation was not as easy as expected. I had to order new brake lines to replace the originals, to have proper connection to the master cylinder, in my 69 resto-mod Chevelle, and made modifications to have the correct line placement for the 4 disc brake conversion. I also had to install an electric vacuum pump to have the right amount of pressure to the brakes, from 10# to maximum 20#s because the original booster was 11” and this is an 8”. I love the clean chrome appearance and it’s working as it should. So far, no leaks...keeping my fingers crossed.
Date published: 2020-03-29
Rated 5 out of
5
by
JJ Branson from
Great Product
I bought this to enhance the engine area & also afford me with good brakes. This product does both!!
Date published: 2019-11-15
Rated 5 out of
5
by
aggrivated from
good value
works as a master cylinder and brake booster should
Date published: 2018-01-29
Rated 4 out of
5
by
HossLS1swap from
Well made unit
I put this unit in a 1952 Chevy p/u that I added disc brakes to the rear, (already had front). Be very versed in brake systems or install with a mechanic. Instructions did not even acknowledge there was a proportioning valve. The proportioning valve had a odd size larger screw in input for the front disc brakes which not being in the instructions was difficult to determine it’s size. Went to four locations from a brake line shop to a machine/hydraulic shop and two auto parts stores before finding a fitting that would fit it. Brake line shop would make a custom part for me but..... then found an odd ball fitting and my mechanic buddy was able to make tubing with the part and his tubing flaring tools. Master cylinder top may have had a burr as one of the screw holes leaked after being tightened down, after so TLC it seems to have stopped. The unit is very sharp looking, not the typical master cylinder. Very nice unit just not a simple upgrade type unit, you have to work for it.
Date published: 2022-01-11
Rated 4 out of
5
by
Sazsquatch from
Good overall quality, almost as pictured
Good overall quality, excellent for the price, I wish it included a plug for one of the front 2 lines in the valve block but I will be running separate lines. It did include plugs for the fittings on the other side of the master cylinder as one review mentioned not having them so that was a concern. The only thing I expected was for the vacuum check valve to be chrome as in the picture, but mine was black plastic so I will have to order one separately. The hardware for the brackets also is not the greatest looking so I plan on upgrading it to better chrome or polished stainless instead. Either way it looks to be a quality piece and for the price I can't complain too much.
Date published: 2021-08-09
Rated 4 out of
5
by
jggg from
nice chrome
I have not finished the installation, I did however purchase a flat mounting bracket rather than use the angle bracket that is supplied. Wish you had this choice when placing order
Date published: 2019-03-24
Rated 1 out of
5
by
Saint1955 from
Junk
Installed 4 months ago ,Car never left the garage and it completely rusted through ,I never even put fluid in it, absolute garbage
Date published: 2022-12-12
Rated 1 out of
5
by
Nitro_Jack_Daddy from
Pain in the
Works ok, the inputs for the master and the proportioning valve are 9/16” which are hard to find. Does not include the needed plugs for the other side of the master, good luck finding them.
Date published: 2018-07-24
Will this unit work with a 1991 Chevy suburban v1500 4 disc brakes?, What kind of modifications do I need to do to make it work?
The Jegs 555-631014 booster assembly is universal fit and up to the end user to make fit.
Date published: 2023-04-19
Will the part number 631014 fit a 1971 nova
The Jegs 555-631014 booster assembly will fit a '71 Nova.
Date published: 2023-04-19
What is the angle of the bracket it comes with? Looking to install on a 1968 Camaro.
The angle on the Jegs 555-631014 is not stated, however, it is correct for a '68 Camaro.
Date published: 2023-04-19
Will this work in 1987 S10, with front and rear single piston discs.
The Jegs 555-631014 booster kit is universal fit. Fabrication will be required for fitment.
Date published: 2023-03-06
Will this break booster kit work on a 1973 Chevy impala?
The Jegs 555-631014 booster kit does not fit a '73 Impala.
Date published: 2023-03-01
What this work on a 78 El Camino
The Jegs 555-631014 booster assembly does not fit a '78 El Camino.
Date published: 2023-01-09
Will this work on a 2001 S-10?
The Jegs 555-631014 booster assembly is universal and will require modifications for fitment.
Date published: 2023-01-09
I purchased this brake booster kit a few years ago the chrome is messing up on the booster cap can I purchase just a new chrome top cap
Jegs 555-631014 you should be able to use the cap 707-R3802
Date published: 2022-11-09
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Some parts are not legal for use in California or other states with similar laws / regulations
Motor Vehicles
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Tools:
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Electrical Cords
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