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Old 03-25-2025, 11:35 AM
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grivera grivera is offline
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Join Date: Feb 2005
Location: Just south of Baltimore
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Quote:
Originally Posted by b-man View Post
Installed the new 1” bore master sourced from my local NAPA store, part number M2163.

Was a bit surprised that they didn’t sell me a remanufactured unit and didn’t want my old one as a core, it’s new and manufactured in China like many mechanical replacement parts still available for old cars nowadays.

Works very well, the previous 1-1/8” master worked fine actually but this one works better and rightfully so because GM sized it for manual front disc brake cars. Pedal feel is a little softer and the increase in pedal travel is minimal.
What measurement did you use for the pushrod into the MC bore?

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'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb