Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Nu-Relics Power Windows
American Auto Wire Hellwig Products IncPerformance Rod & Custom
Danchuk Catalog



Username Post: 41 disc brake conversion        (Topic#359133)
jbouchard 
Contributor
Posts: 328

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: 555

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 pass. coupe 350/700R4
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 
"9th Year" Silver Supporting Member
Posts: 689
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 
Valued Contributor
Posts: 2799

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: 555

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 pass. coupe 350/700R4
1937 Austin gasser 327/TH350


 
Shepherd 
Valued Contributor
Posts: 2799

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: 555

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 pass. coupe 350/700R4
1937 Austin gasser 327/TH350


 
Shepherd 
Valued Contributor
Posts: 2799

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 
"9th Year" Silver Supporting Member
Posts: 689
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: 135

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 
"9th Year" Silver Supporting Member
Posts: 689
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: 135

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.

 
Mel Foye 
*VIP* Original Founding Member Group
Posts: 5597
Mel Foye
Reg: 09-29-00
03-01-20 12:36 PM - Post#2787681    
    In response to Broo102

My personal experience varies. 1962 Corvette lost most of the drum brakes due to dirty fluid in stock MC. Honed and new kit and worked fine till I hit a big run of water and standing on the pedal barely slowed the car. So I said goodby to front drums and went to disc on the front.
Stock MC, no power unit, no pro-valve and no residual pressure valve. Great brakes now and setup has 250,000 miles on it.
When I pull engine will likely go to dual MC for the back up safety. Used dual set up in my 30 rod.




It Was On Fire When I Laid Down.


 
jbouchard 
Contributor
Posts: 328

Reg: 08-07-12
03-15-20 04:54 AM - Post#2788671    
    In response to Mel Foye

Hello All,
Thank you for the responses and information. This was simply an inquiry for something I would like to do in the future and I will keep this information. My goal is just to make the car safer and more drivable.
Judson



 
jbouchard 
Contributor
Posts: 328

Reg: 08-07-12
01-02-23 08:57 AM - Post#2853108    
    In response to jbouchard

Update:

Its been a while, but..

Ended up purchasing and installing an indpendent front suspension from Southern rods with the disc brake and power steering option.

Found a t5 from a 1993 Chevy S10 which fit my 235 engine.

Replaced the rear with a 67 Mercury rear.

Right now in the process of tackling how to hook up the power steering as (ironically) there is not a lot of room to run an additional belt/ps pump.

Not there yet, but making progress.

Thanks for everyones help.




Edited by jbouchard on 01-02-23 04:02 PM. Reason for edit: No reason given.

 
bobb 
Super Senior Member
Posts: 6215

Loc: paradise
Reg: 09-05-03
01-29-23 10:34 AM - Post#2853875    
    In response to jbouchard

i would be looking for the smallest pump i can find with mounting tabs i can fab to. remote reservoir and done.

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


 


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

1346 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.093 seconds.   Total Queries: 17   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 10:49 PM
Top