I have a Delco Master Cylinder 5460465 with a CT stamp and a Date code of 73 and a D14 foundry mark.
I ran across some info on various Camaro sites wanting to know if this was used on any other cars.
This particular Master Cylinder came directly off of an early 1970 build Cutlass Supreme SX 455 Convt with power drums. The car was quite original and built between July and August of 1969. The car had matching #s on everything. I've restored the car to about 95% concourse (obviously not 100% since I still have the original master cylinder).
Hope this info helps. And by the way, It's for sale if anyone is interested.
Dan
Collector Car Corral.
http://www.carcorral.comcell - 740 *818 *7465