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Username Post: 41 disc brake conversion        (Topic#359133)
jbouchard 
Contributor
Posts: 316

Reg: 08-07-12
12-14-19 04:42 PM - Post#2782159    

Hello All.
Just wondering what others have setup to put disc brakes and and a power brake booster on a 41 special deluxe. Right now I just have the stock setup (shoes and drums), but want to know what other cars/years have disc brakes that will fit the 41.
Thanks,
Judson



 


1971BB427 
Contributor
Posts: 247

Loc: Portland,Or
Reg: 12-06-09
12-14-19 06:30 PM - Post#2782167    
    In response to jbouchard

There are no kits or direct fit disc brakes from other year Chevys that will bolt right on. And the disc brake kits available for a '41-'49 Chevy car will always come with a later 5x4.75" bolt pattern. So if you still have the original 6 bolt wheels you'll be replacing them with 5 bolt Chevy pattern wheels.
This is one kit for $400 that is a bolt on. But what they don't include is a new master cylinder, or proportioning valve, and both should also be added when you swap in disc brakes. I would always use a dual master and proportioning valve when running a disc/drum setup.

https://www.ebay.com/itm/1941-1948-Chevrol et-front...


1969 Suburban 2wd 350
1939 Chevy passenger coupe
1937 Austin gasser 327/TH350


 
joems 
Newbie
Posts: 3

Reg: 11-17-11
01-15-20 02:00 PM - Post#2784441    
    In response to jbouchard

I actually have one of those kits in the response above that I never used if you are interested.
Joe



Edited by joems on 01-15-20 02:00 PM. Reason for edit: No reason given.

 
Broo102 
"5th Year" Silver Supporting Member
Posts: 580
Broo102
Loc: Huntington Beach, CA.
Reg: 09-30-14
01-24-20 01:56 PM - Post#2785087    
    In response to jbouchard

Use a 50s corvette for your Master cyl set up for under neath the floor, thats what I did on my 47
Fits well

Thanks!
Bru
John 3:16
32 Chev. 5 Win. Sports Coupe
47 Chev. convertible in progress


 
Shepherd 
Frequent Contributor
Posts: 1949

Loc: Lake George, NY
Reg: 11-11-15
01-24-20 02:25 PM - Post#2785091    
    In response to Broo102

How does a 50's vette master work with disc brakes?



 
1971BB427 
Contributor
Posts: 247

Loc: Portland,Or
Reg: 12-06-09
01-25-20 07:16 AM - Post#2785131    
    In response to Shepherd

It wont work. Need a dual master, and an adjustable proportioning valve to convert to disc brakes.


1969 Suburban 2wd 350
1939 Chevy passenger coupe
1937 Austin gasser 327/TH350


 
Shepherd 
Frequent Contributor
Posts: 1949

Loc: Lake George, NY
Reg: 11-11-15
01-25-20 09:13 AM - Post#2785138    
    In response to 1971BB427

Correct, that was my point. Lol



 
1971BB427 
Contributor
Posts: 247

Loc: Portland,Or
Reg: 12-06-09
01-25-20 04:25 PM - Post#2785163    
    In response to Shepherd

Yes, I figured that's where you were going. But another issue with a 50's Corvette master and disc brakes is the bore diameter of that master, and lack of pressure to properly function with disc brakes. Need a proper sized master that's designed for disc/drum system, so it will brake like a car made originally with disc/drums.


1969 Suburban 2wd 350
1939 Chevy passenger coupe
1937 Austin gasser 327/TH350


 
Shepherd 
Frequent Contributor
Posts: 1949

Loc: Lake George, NY
Reg: 11-11-15
01-25-20 07:01 PM - Post#2785176    
    In response to 1971BB427

Again, correct, the master should be disc/drum by design. I have this set up on my 51, common vette master, 1 1/8 bore, 10# residual plumbed into the rear, matching prop valve of course. Pedal is a little low as expected, a 1" bore would provide a better pedal feel, but the brakes work great, double diaphragm booster also.



 
Broo102 
"5th Year" Silver Supporting Member
Posts: 580
Broo102
Loc: Huntington Beach, CA.
Reg: 09-30-14
01-29-20 01:49 PM - Post#2785421    
    In response to 1971BB427

I used a vette M/C maybe it was from sixties?, works fine with my front disc brakes, drums in rear
I used an external proportioning valve

Thanks!
Bru
John 3:16
32 Chev. 5 Win. Sports Coupe
47 Chev. convertible in progress


Edited by Broo102 on 01-29-20 01:49 PM. Reason for edit: No reason given.

 
1941srodcoupe 
Member
Posts: 83

Reg: 07-08-03
02-07-20 05:49 PM - Post#2786085    
    In response to Broo102

What is your end game goal? R U going to stay stock suspension 4ever? If not wait & change it all at once. If staying stock like said above u may loss your 6 lug wheels. I'm not sure what is offered for under floor master cylinder. If staying under floor U will need the proper residual check valves. Don't mean to insult you but depending on your skill level it can get tricky and unsafe pretty quick. Do your homework B4 U jump into a project like this and keep asking ?s.



 
Broo102 
"5th Year" Silver Supporting Member
Posts: 580
Broo102
Loc: Huntington Beach, CA.
Reg: 09-30-14
02-12-20 08:46 PM - Post#2786401    
    In response to 1941srodcoupe

If youre addressing me, I, running a Camaro rear end with new leaf springs and shocks
My M/C works fine with the external adjustable valve in line with the rear brakes

Thanks!
Bru
John 3:16
32 Chev. 5 Win. Sports Coupe
47 Chev. convertible in progress


 
1941srodcoupe 
Member
Posts: 83

Reg: 07-08-03
02-14-20 04:23 PM - Post#2786526    
    In response to Broo102

Sorry that was meant for the OP. He seems to have left the scene.



Edited by 1941srodcoupe on 02-14-20 04:23 PM. Reason for edit: No reason given.

 


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