Brake Line Size Differences?
#1
Brake Line Size Differences?
I'm about to replumb my brake lines and thought I read somewhere that power brakes will have larger diameter lines (looking to upgrade to power brakes as well). Any truth to this? What size lines are most folks running?
#2
Team Owner
Member Since: Feb 2003
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2015 C2 of Year Finalist
Just buy the correct pre bent lines sold by any corvette vendor
#4
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So far nobody answered this first question.
#5
Burning Brakes
Since you did not specify what year, any C2 year prior to 66 will be 3/16 line with or without power brakes. In 66 the front to rear feed line changed to 1/4 but the remaining lines stayed 3/16. I am assuming C1 corvettes will also be 3/16. If you are working on a C2 there is no need to use the 67-brake line plumbing unless you have a 67. The 67 plumbing incorporated a pressure differential switch which many, including the vendors, mistakenly refer to as a proportioning valve. That switch only serves to illuminate a brake warning light and does nothing to adjust front to rear brake bias. I would use the 66 brake lines to avoid the additional plumbing connections used in 67 and a dual circuit master will be sized for the 1/4-line fitting unless you are using the 65-power brake master which will be sized for the 3/16 line fitting. Be aware of the rear brake tee size 3/16 vs 1/4 line. Also, potential problem with body clearance as the 66 onward floor pan was notched for the revised brake line routing. Many have done this and not had a problem. Lastly help us help you by specifying what year you are working on, and it also helps if you fill out your profile with cars, city, and state.
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Sherry Red (09-23-2023)
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