The Supercar Registry - 309 Master Cylinder

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- - 309 Master Cylinder (https://www.yenko.net/forum/showthread.php?t=102655)

turbojet427

01-10-2009 08:43 PM

309 Master Cylinder

What is a "GA" coded 309 master cylinder for?

Mr70	01-11-2009 12:20 AM

Re: 309 Master Cylinder

Those were used on 1969 Firebirds w/power front disc brakes & rear drum.
Master cylinder casting #5468309,actual factory part #5469357
Coded GA
Primary piston has shallow push rod hole
Secondary piston identification has 3 rings
Bore diameter is 1.125"
Distribution 69/31
Port location/routing front-front/rear-rear
Port sizes front 1/2"x20,rear 9/16"x18
Line wrench size front and rear 9/16"

turbojet427

01-11-2009 01:49 AM

Re: 309 Master Cylinder

Thanks!!

wheelhop

01-11-2009 02:22 AM

Re: 309 Master Cylinder

Rick,
I think you need to get out more!!

Unreal

01-11-2009 08:50 PM

Re: 309 Master Cylinder

Hey Rick,
I have this crick in my back.......

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