Description
EDELBROCK VICTOR JR 20 (60CC) CYLINDER HEADS FOR S/B FORD W/
MECHANICAL FLAT TAPPET OR HYDRAULIC ROLLER CAMSHAFT APPS (COMPLETE,
SINGLE) -- 77189
VICTOR JR. 20 - 210cc FEATURES:- 500+ horsepower potential out-of-the-box using stock valve train geometry
- High-flowing 210cc intake ports and .130" raised 75cc exhaust ports
- Available with 60cc or 70cc combustion chambers
- 70cc combustion chambers are ideal for turbocharged and supercharged applications
- CNC gasket-matched port entries/exits with blended valve bowls
- Spark plug holes and valves are in the stock location
- Valve cover rail raised .150"
- A relief in the head allows most roller lifters to be changed without removing heads
- Cylinder Head Specifications:
- Combustion chamber volume: 60cc / 70cc
- Intake runner volume: 210cc
- Exhaust runner volume: 75cc
- Intake valve diameter: 2.05"
- Exhaust valve diameter: 1.60"
- Valve stem diameter: 11/32"
- Valve guides: Manganese bronze
- Deck thickness: 5/8"
- Valve spring diameter: 1.55"
- Valve spring maximum lift: .650" ft / .670" roller (A)
- Rocker stud: 7/16"
- Guideplate: Hardended steel
- Pushrod diameter: 5/16"
- Valve angle: 20 degrees
- Exhaust port location: Raised .130"
- Spark plug fitment: 14mm x 3/4 reach, gasket seat
INSTALLATION NOTE: Check cam manufacturer's specs for
compatibility with valve springs. Recommended valve sizes listed. Match
with Edelbrock head gasket sets. Use Head Bolt Kits for easy
installation. These heads require the use of a 14mm x 3/4" reach, flat
gasket spark plug with a heat range appropriate to your application.
Deck thickness: 5/8", rocker stud diameter: 7/16", pushrod diameter:
5/16" (width of slot in guide plate).
