[C2] Power Brake conversion question
Thread Starter
Pro
Joined: May 2017
Posts: 639
Likes: 52
From: North East
Power Brake conversion question
While I am waiting for the 5th different PS pump and for parts to finish the front coil over project, I thought I'd begin working on the power brake portion of winter projects. The car (65) currently has 4 wheel disc brakes, but the brakes are manual and single MC.
The car is a big block with tall valve covers so I plan on doing a 7" booster and a wilwood combo dual master and proportioning valve.
Being the car currently has 4 wheel discs, do I need to re run all new brake lines? (I have not checked to see what the dia is of the current lines) If so, who makes the best package? or what supplier has the best package.
As a consideration, the body is on the car and I don't want to remove the body if I have to run new brake lines...
Thanks!
The car is a big block with tall valve covers so I plan on doing a 7" booster and a wilwood combo dual master and proportioning valve.
Being the car currently has 4 wheel discs, do I need to re run all new brake lines? (I have not checked to see what the dia is of the current lines) If so, who makes the best package? or what supplier has the best package.
As a consideration, the body is on the car and I don't want to remove the body if I have to run new brake lines...
Thanks!
Drifting<br><img src="/forums/images/ranks/2k-3k.gif" border="0">
Joined: Aug 2016
Posts: 1,868
Likes: 827
From: Grosse Pointe, MI
I replaced my brake lines with the body on the car with lines bought from one of the usual corvette parts places. They make a kit just for this purpose. Was a bit of a pain to get over the frame crossmember, but was doable.
Patrick
Patrick
Drifting
Joined: Jan 2013
Posts: 1,772
Likes: 196
From: Asheville NC
Hi Cerb,
Lots of threads if you search on this topic.
I did this conversion on my first C2 and went with this kit. You don't change the front steel lines but the line from the Master to the rear block is changed (just like Patrick said)
https://www.ecklerscorvette.com/corv...1963-1966.html
NOTE; On my BB the booster would not fit due to booster fit with the left valve cover but there is a two stage booster available., and they may make a cover with a cut out.
The second time around I added the booster, dual master and did not change the line to the rears. Just added a fitting at the master to connect the rear line to the master.
Phil
Lots of threads if you search on this topic.
I did this conversion on my first C2 and went with this kit. You don't change the front steel lines but the line from the Master to the rear block is changed (just like Patrick said)
https://www.ecklerscorvette.com/corv...1963-1966.html
NOTE; On my BB the booster would not fit due to booster fit with the left valve cover but there is a two stage booster available., and they may make a cover with a cut out.
The second time around I added the booster, dual master and did not change the line to the rears. Just added a fitting at the master to connect the rear line to the master.
Phil
Thread Starter
Pro
Joined: May 2017
Posts: 639
Likes: 52
From: North East
Hey Phil. I did not see that Patrick said he only changed the rears, but did say getting over the cross member to the rear was a pain....
I cannot find tall valve covers with the cut out, and the valve covers are new, so I'm good with the 7" booster.
I am just curious as to whether people replaced some or all of their lines and if they went to 3/16th or stayed at 1/4 (manual brake line size)
Best
I cannot find tall valve covers with the cut out, and the valve covers are new, so I'm good with the 7" booster.
I am just curious as to whether people replaced some or all of their lines and if they went to 3/16th or stayed at 1/4 (manual brake line size)
Best
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,417
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
Andy, the size of the MC bore and the caliper pistons determine performance. Brake fluid is virtually non-compressible, so the line size makes little difference. I would only replace the lines if you have reason to believe they are suspect. If you do replace them, 3/16” is perfect.
