Brake booster and master cylinder

[70rtse]

Hi guy ready to run my brake lines in my 70 challenger

What are the best reproduction brake booster and master cylinder to purchace and were from please

[70rtse]

Was going to these rebuilt that came of the car but don't think there correctly for 70 challenger

[dodj]

Was going to these rebuilt that came of the car but don't think there correctly for 70 challenger

While I'm certainly no originality guru, that booster looks identical to what is in my '73 Challenger...so probably incorrect for a '70?
Everything on a '70 is 'one off' isn't it?

[1970 cuda Joe]

Some numbers might help. There's a casting number on the m/c & there might be a number on the booster. I would always rebuild the originals if possible... if they're correct.....Joe

[EV2RTSE]

I think if I were in the market for something that looks close to stock for a 70 and is bolt on-ready to go for not a lot of money, I'd go with this booster-

https://www.ebay.com/itm/135123671906

And then the Raybestos 36307 master as outlined in this thread by JH27N0B-

https://forum.e-bodies.org/wheels-tires-brakes-suspension-and-steering/12/replacement-brake-master-cylinder/31668/msg336625#msg336625

[70rtse]

Spoke to the engine builder and were using a big solid cam he said I won't have the required vaccum for a booster

He suggests running a willwood master straight to the firewall and no booster.

What are your thoughts

[EV2RTSE]

That seems to be what a lot of people go to when running a big cam, maybe also consider a hydro-boost setup.

[Brads70]

I've had this on my car for 17 years now.

https://www.doctordiff.com/aluminum-master-cylinder-kit.html