Master cyliner Identification
Thread Starter
Racer
Joined: Sep 2008
Posts: 344
Likes: 50
From: Marietta GA
Master cyliner Identification
I have a 72 LT-1 with power brakes. The master cylinder casting number is 546XX48 (the XX digits are illegible). It is stamped "HK" and has a D3 stamp by the forward port. Is this an original item worth rebuilding or should I just replace? Thanks!
Team Owner
Joined: Sep 2006
Posts: 31,214
Likes: 4,302
From: Westminster Maryland
Hi J,
I believe the original master cylinder for a 72 pb car would have the casting number 5480346 and a broadcast code of either PG or MK depending when the car was built.
Regards,
Alan
Check the casting number carefully because often the digits are difficult to decipher.
I believe the original master cylinder for a 72 pb car would have the casting number 5480346 and a broadcast code of either PG or MK depending when the car was built.
Regards,
Alan
Check the casting number carefully because often the digits are difficult to decipher.
Thread Starter
Racer
Joined: Sep 2008
Posts: 344
Likes: 50
From: Marietta GA
The interesting thing is the third digit "6" is clear with a flat on the left side while the seventh digit "8" also appears quite clear. I'd love my mind to make it 548XX46. I'd post a pic if I was better at that. The "HK" also appears clear.
