LT1 or LS1 master?

[64Chevelle]

Hi,

I've got C5 13" brakes up front (Baer Track Plus) and LS1 rear brakes. I don't want to use the heavy cast iron master that came with the Baer kit and rather buy a used alu master from a newer vehicle. I have the original 64 Chevelle booster and pedals. I have no idea what the pedal arc ratio is, but I guess approx 3.5:1

Should I go with the LT1 or LS1 master? Do I have the correct details about the master bores?

LT1 = 0.862" ~7/8"
LS1 = 1"

I guess my booster isn't really that strong. Also, if I would go manual instead, would that change your recommendation? I wan't my wife to be able to drive the car too, so it might require too much pedal effort?

[Andrew McBride]

From what I have gathered a C5 master/booster works well.

15/16" is what a lot of guys recommend for manual. Some are running a 1" as well. Do a search and you should come up with some good info. https://www.pro-touring.com/forum/showthread.php?t=37217

DSE also has a master/booster that is a bolt on set-up.

[Apogee]

Both the LT1 and LS1 master cylinders have 1" bores if I'm not mistaken. We typically suggest 7/8" to 15/16" bore MC for manual applications, 15/16" to 1" bore for vacuum boosted applications, and 1-1/8" bore for hydro-boost.

Tobin
KORE3

[ROEINONDUBS]

I was going to do the ls1 swap but just got some zo6 parts (thanks for answering my questions tobin!) if you want a updated look check out ssbc or the willwood MC. also if you want to get rid of that bear mc let me know

Hi,

I've got C5 13" brakes up front (Baer Track Plus) and LS1 rear brakes. I don't want to use the heavy cast iron master that came with the Baer kit and rather buy a used alu master from a newer vehicle. I have the original 64 Chevelle booster and pedals. I have no idea what the pedal arc ratio is, but I guess approx 3.5:1

Should I go with the LT1 or LS1 master? Do I have the correct details about the master bores?

LT1 = 0.862" ~7/8"
LS1 = 1"

I guess my booster isn't really that strong. Also, if I would go manual instead, would that change your recommendation? I wan't my wife to be able to drive the car too, so it might require too much pedal effort?