1960-1970 Mopar Master Cylinder Disc Applications. has 10lb residual valve for rear brakes built in Exhaust Fabrication Groove Style:

Groove Style:

retainers & locks

Note: These heads are drilled for 1/2" head bolts

If you are using for the master cylinder for power brakes you will need to tap out the bolts and remove the boot on the back of the master cylinder

Made from 8740 chromoly steel and are heat-treated to 180

1960-1970 Mopar Master Cylinder Disc Applications. has 10lb residual valve for rear brakes built in Exhaust Fabrication Groove Style:1960 1970 Mopar Master Cylinder Disc Applications. 1. 125" Bore 9 16" 20 INV & 1 2" 20 INV Ports Internal residual valve for rear brakes 10 LB. Bendix Style; Near identical to original 2225621 with correct lid inscription Master is period correct used on all non Hemi applications, and also correct for Hemi applications from 1967 70. Cast finish Firewall boot & 4 Bolts included! Firewall bolts will come pre installed. If you are using for the master