Beginning in 1970, GM switched to this rectangular style of master cylinder with bleeder screws. This brand new reproduction master cylinder is exactly like the original except it does not have any casting marks nor does it have the small machined surface on the front like the original.
This master cylinder is correct for the following models:
1970 - 1980 Camaro / Firebird
1970 - 1973 Chevelle / El Camino (and other GM A bodies)
1970 - 1978 Nova
This master features built-in bleeders & 70's OEM look. Specs: 1 1/4" Bore, shallow hole, 9/16-24 & 1/2-18 Ports on left side.
