I always wanted to have a line lock on my original 1967 Charger, but I don't like the idea to modify the originality of the car.
I checked on Ebay for a discrete valve...

I found a Whitey B-43F4 Brass Ball Valve - 1/4in - 0.9 CV - 40 Series for $15.00 + 4.95 shipping and installation 2 hours.

Works Great

I hope ya never unknowingly bump it closed vacuuming, or reaching around under the seat, or someone else admiring your car ect.

Could be a "surprise"! no front brakes.

That looks like it is set up to block pressure to the rear brakes. That Is how I set up all the ones I do, works great on automatic cars.

Yeah, looks rr brk interrupt, a good way to do brake torque burnouts.

If you drag race the car you might want to read NHRA rulebook gen reg section 3.1 "All line-locs
(electric or hydraulic) must be self-returning to normal brake operating mode". I am not trying to be a jerk just wanted you to know

It's not a drag car, just a occasional strip...

https://www.youtube.com/watch?v=tt-x-_3jjmE

what a joke👎

It is people like you who insure that I will never be able to say " I've seen it all ".
So thanks........I think.

I could think of 20 different ways to hide a line lock... That's not one of them, seems dangerous...

No more dangerous than a misadjusted, as in "cut off" adjustable proportioning valve. They will both shut the rear brakes off................BUT, you can actually use an electric one right where you have that valve. Flip the switch BEFORE you push the brakes, solenoid closes.......viola, no rear brakes

Guys quit hating, friend of mine has a 65 Belvedere been a race car sense 72 has a ball valve. Set up and has never been hit/turned on by accident works fine and can use as a temp parking brake while its on his trailer. Lot of libs showing there colors.
Make shur you don't have that full race cam and a spool on the street either.

What I don't get it is you mention originality and then you cut a hole in the floor and modified the brake line.

Understand, but still not a good idea from a safety standpoint. Weather you are cutting out the front or rear brakes, it should be done with a momentary switch operating a solenoid and the system should be energized with a SPST toggle switch ( with an arming light if possible ). A little more work, but you could hide most of it easily enough.

Thanks for your comments, and likes the idea of momentary switch operating a solenoid and the system energized with a SPST toggle switch...

Never use a toggle swith. That's as dangerous as anything. A push button is the only way to go.

So what kind of pressure is that valve rated for?

Kevin

3000 PSIG @ 100°F /206 BAR @ 37°C

with a max temperature rating of

150 F 3000 PSIG /65 C 206 BAR

according to the data sheet

ball valve are used in just about every oval race car that allows them to be used for RF brake shut off and or right side brakes shut off, im about to install one on mine for line lock, simple and ez, for any body whos worried a saftey or break away wire can be used to lock the valve in the open position.

I used to drive a tow truck that had a valve like that to lock all four wheels during winch and recovery work. You should have no problem with it, good luck!

Something like that might make a good anti-theft device.