Victor Jr. 23° - 220cc Cylinder Heads For S/B Chevy


Victor Jr. 23° - 220cc Cylinder Heads For S/B Chevy by Edelbrock
 
  • Cylinder Head Specifications:
  • Combustion chamber volume: 64cc
  • Intake runner volume: 220cc
  • Exhaust runner volume: 85cc
  • Intake valve diameter: 2.10"
  • Exhaust valve diameter: 1.60"
  • Valve stem diameter: 5/16"
  • Valve guides: Manganese bronze
  • Deck thickness: 11/16"
  • Valve spring diameter: 1.55"
  • Valve spring maximum lift: .630" 61255 | .700" 61259
  • Rocker stud: 7/16"
  • Guideplate: Hardended steel
  • Pushrod diameter: 5/16"
  • Valve angle: 23°
  • Exhaust port location: Raised .300"
  • Spark plug fitment: 14mm x 3/4 reach, gasket seat
 
Edelbrock Victor Jr. 23° 220 cylinder heads are an affordable option that delivers maximum power in high-performance street and entry-level competition engines. Its 64cc combustion chamber yields around 10:1 compression ratio in a typical flat-top application and about 12.5:1 when used with some of the most common 12cc dome pistons. One of the key features of the Victor Jr. 23° 220 cylinder heads is the CNC machined chambers and bowls, which result in consistency and improved performance. They also feature angled spark plug holes and maintain the stock 23° valve angle as well as the intake flange bolt pattern for use with 1986 and earlier intake manifolds. All of this allows these cylinder heads to deliver 530-580 hp potential right-out-of-the-box, making them ideal for a budget minded engine build desiring a high quality cylinder head that still uses a stud and guide plate rocker system. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves to be used.
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin
EQUIPPED WITH SPRINGS FOR USE IN MECHANICAL FLAT TAPPET AND HYDRAULIC ROLLER CAMSHAFT APPS.
Victor Jr.23° 220 - 61249 61255
 
EQUIPPED WITH SPRINGS FOR USE IN MECHANICAL ROLLER CAMS
Victor Jr.23° 220 - 61249 61259
Edelbrock Installation Note INSTALLATION NOTE: Check cam manufacturer’s specs for compatibility with valve springs for spring rates. Match with Edelbrock head gasket sets or use Fel-Pro intake gasket #1206 and Fel-Pro exhaust gasket #1405. Requires hardened pushrods. 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.
#61259: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 72 143 194 242 280 304 312
Exhaust 60 114 154 201 215 220 224
Edelbrock Tech Note TECH NOTE: Please view Cylinder Head Flow Data and Valve Springs & Retainers for all Edelbrock Performance Aluminum Cylinder Heads.
Edelbrock Tech Note PRODUCT EMISSIONS GUIDE
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps