When considering modifications, generally speaking people think of how the modifications will influence one or more of the following:

1. resale value

2. enjoyment/safety when using the car

3. how the car might be judged at a competitive car (usually against cars of similar vintage and usually the same manufacturer)


In many cases. items 1 and 3 are linked. A very high point car will command a very high value. National judging standards vary radically from club to club. If you look at NCRS judging, they even consider the size/spacing/type of stitching used for carpeting when judging. Other clubs might not look at the stitching but will have performance measures such as using sound level meters to measure how quiet a car is at idle and at different RPMs.

Safety exceptions also vary dramatically. Some clubs allow the use of radial tires (but specify what tire sizes are allowable), most allow professional looking safety belt installations, etc. Even within a club, there are usually multiple classes with somewhat different judging standards such as concours (as delivered from the factory), touring (a more regularly driven car), preservation (unrestored, original car), restomod, etc.

I would doubt that any national club would allow visible brake modifications without deductions in a concours class. However, the deduction might be small enough that an owner would decide that was an acceptable trade to ensure a more dependable, safer car.

We may be totally off subject since Shelly posed the question on value rather than directly questioning the effect on judging. If his car is very original, then changing the brakes might have more influence on value. If the car already has a number of deviations from original, then probably brake changes would have little effect and might raise the value to a buyer that wants to drive the car regularly.

Larry