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Old 02-18-2017, 01:46 PM   #1
dookie454
 
Drives: 2010 Camaro 2SS LS3
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Master Cylinder Brake Line size/thread?

This is driving me nuts. I have a B&M line lock and I cant find the Master Cylinder fitting thread size anywhere.. the standard size is too fine... these are more coarse thread.

2010 Camaro LS3

I know I could spend $200 on a kit that has it but $50 for the lock and $10 in fittings should be all I really need.. I know the line lock is 1/8 npt but what is the OEM master cyl output?

any help would be appreciated

Last edited by dookie454; 02-18-2017 at 03:44 PM.
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Old 07-17-2017, 07:26 PM   #2
ttshovel

 
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I know this is an old thread but if anyone stumbles across this... the correct size is m12x1.5 inverted flare. these fittings are damn near impossible to find at your local parts store, so order some 6mm copper nickel brake line and reuse your factory ends
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Old 09-25-2019, 03:37 PM   #3
05SilverStreak
 
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how do you flare the ends?
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Old 09-25-2019, 04:31 PM   #4
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Quote:
Originally Posted by 05SilverStreak View Post
how do you flare the ends?
With a flare tool?
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Old 02-23-2020, 02:51 AM   #5
Sidestick
 
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Quote:
Originally Posted by ttshovel View Post
I know this is an old thread but if anyone stumbles across this... the correct size is m12x1.5 inverted flare. these fittings are damn near impossible to find at your local parts store, so order some 6mm copper nickel brake line and reuse your factory ends
Well now itís even older. Anyway, Iím not sure it is M12x1.5.
Iíve tried both with a tap (M12) in the master cylinder and a die on the fitting.
The pitch is correct, 1,5mm/thread but the diameter is not correct. M12 is 12mm and the stock Camaro fitting is around 11.6mm.
I canít get the tap more than 1.5 turns into the cylinder and the same with the die on the fitting, around 1.5 turns.
Any new info regarding this?
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Old 06-08-2020, 10:15 PM   #6
Hewiththe1LE
 
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Anybody know the size of the fitting going into the master cylinder? I installed a line lock and the supplied brake line keeps leaking. Figured I’d just swap it out for a braided line

Last edited by Hewiththe1LE; 06-08-2020 at 10:16 PM. Reason: More information
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