Master cylinder bore diameter

Tiny
BRAD72
  • MEMBER
  • 1991 HOLDEN STATESMAN
  • V8
  • 2WD
  • AUTOMATIC
  • 112,000 MILES
Hi I am looking to upgrade my brakes on my 91 vq caprice series 1 5.0 v8. I was hoping you could tell me if my master cylinder is 23.83 mm or 25.4 mm. Thanks
Sunday, March 13th, 2011 AT 8:59 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
You have to be a bit careful with this as it is not just a case of fitting a larger master, the volume of the master is proportional to the volume of the calipers, alter this and you will strike problems.
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Sunday, March 13th, 2011 AT 12:06 PM

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