E-CNC 185 Cylinder Heads For S/B Chevy


E-CNC 185 Cylinder Heads For S/B Chevy by Edelbrock
 
  • Cylinder Head Specifications:
  • Combustion chamber volume: 64cc /68cc
  • Intake runner volume: 185cc / 225cc / 260cc
  • Exhaust runner volume: 75cc / 88cc
  • Intake valve diameter: 2.02"
  • Exhaust valve diameter: 1.60"
  • Valve stem diameter: N/A
  • Valve guides: N/A
  • Deck thickness: 9/16"
  • Valve spring diameter: 1.46"
  • Valve spring maximum lift: .575"
  • Rocker stud: 3/8"
  • Guideplate: Hardened steel
  • Pushrod diameter: 5/16"
  • Valve angle: 23°
  • Exhaust port location: N/A
  • Spark plug fitment: 14mm x .750 reach, tapered seat
 
    E-CNC 185 S/B CHEVY FEATURES:
  • Features fully CNC machined intake ports, combustion chambers and exhaust ports for improved performance
  • Maintains the stock 23 valve angle and intake flange bolt pattern for use with 1986 and earlier intake manifolds
  • Delivers up to 30+ horsepower over Performer RPM cylinder heads
  • Ideal for high performance street and light duty racing applications
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin
EQUIPPED WITH SPRINGS FOR USE IN MECHANICAL FLAT TAPPET AND HYDRAULIC ROLLER CAMSHAFT APPS.
E-CNC 185 (185cc) - 79889 79895
 
EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET CAMSHAFT APPLICATIONS
E-CNC 185 (185cc) - 79889 79899
 
EQUIPPED WITH SPRINGS FOR USE IN MECHANICAL ROLLER CAMSHAFT APPLICATIONS
E-CNC (225cc) - - 61209
E-CNC (260cc) - - 61219
E-CNC (275cc) - 61229 -
 
EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS
E-CNC (225cc) - - 61205
E-CNC (260cc) - - 61215
Edelbrock Installation Note INSTALLATION NOTE: Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
#79899: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 61 129 186 231 250 254 253
Exhaust 53 106 147 185 199 203 209
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