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EDELBROCK VICTOR JR 20 (60CC) CYLINDER HEADS FOR S/B FORD W/ MECHANICAL FLAT TAPPET OR HYDRAULIC ROLLER CAMSHAFT APPS (COMPLETE, SINGLE) -- 77189

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Part Number: 77189

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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).

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