***SPECIFY MASTER SIZES DURING CHECKOUT***
Call with questions.  Nowadays they are pushing front and rear 1's and clutch 3/4.
 
Info
AFCO Master Cylinders
1-piece design incorporates a high-capacity reservoir and precisely machined/polished cylinder bore
External return spring maintains positive feel and helps prolong pad life by ensuring quick reaction to released pedal force
Precise fitting lid held in place by a heavy gauge retainer
Slim design rubber boot allows easy installation into most pedal assemblies
Aluminum bore with hard anodized pistons
Unique built-in minimum and maximum fill tabs are easy to read and make quick work of checking fluid even in dark pit areas
Common dual-mounting bolt patterns for most racing applications
Choose 3/4, 7/8, or 1" bore
Designed for 1/8" NPT fittings for easy replacement
AFCO Reverse Mount Brake/Clutch Pedal
H-Beam forged aluminum pedal design
Ultra-strong upper mount has 52% less flex than the competition
Exclusive bias "tie-bar" adds strength and sets clevis spacing for proper master cylinder function
Ultra high strength bias bar; same strength of 7/16 bias bar in the traditional 3/8 size
Internal hex in bias bar eases bias set up
Four 1/4-20 auxiliary mounting posts for added rigidity
Extra coarse, industrial grade anti-skid foot pads
Weighs 4.36 lbs