E-CNC 355 Rectangle Port Cylinder Heads For B/B Chevy


E-CNC 355 Rectangle Port Cylinder Heads For B/B Chevy by Edelbrock
 
  • Cylinder Head Specifications:
  • Combustion chamber volume: 110cc / 118cc
  • Intake runner volume:
    348cc (lh) / 356cc (rh) - #79539
    354cc (lh) / 334cc (rh) - #79559
  • Exhaust runner volume: 145cc / 129cc
  • Intake valve diameter: 2.300"
  • Exhaust valve diameter: 1.88"
  • Valve stem diameter: 11/32"
  • Valve guides: Manganese bronze
  • Deck thickness: 5/8"
  • Valve spring diameter: 1.55"
  • Valve spring maximum lift: .700"
  • Rocker stud: 7/16"
  • Guideplate: N/A
  • Pushrod diameter: 3/8"
  • Valve angle: 24.5° x 4.4° (In) / 15.5° x 4.2° (Ex)
  • Exhaust port location: Stock
  • Spark plug fitment: 14mm x 3/4 reach, gasket seat
 
    E-CNC 355 FOR B/B CHEVY (RECTANGLE PORT) FEATURES:
  • These heads deliver maximum horsepower and torque in high performance street and light duty racing applications
  • Full CNC porting of the combustion chambers, intake & exhaust runners; improving air-flow & overall performance potential
  • These heads have a 24.5° x 4.4° intake valve angle, 15.5° x 4.2° exhaust valve angle and exhaust ports that have been raised 0.125" but are still in the stock location
  • Spark plug angles have been modified to produce a smooth flame front for increased fuel efficiency & maximum power
  • Two combustion chamber sizes are offered, 110cc and 118cc
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin
EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS
E-CNC 355 Rectangular Port (110cc) - 79529 79535
E-CNC 355 Rectangular Port (118cc) - 79549 79555
 
EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET CAMSHAFT APPLICATIONS
E-CNC 355 Rectangular Port (110cc) - 79529 79539
E-CNC 355 Rectangular Port (118cc) - 79549 79559
Edelbrock Installation Note INSTALLATION NOTE: Match with Edelbrock head gasket sets . Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
#79539 | #79559 | #79535 | #79555: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 77 155 235 292 330 354 368
Exhaust 64 129 181 214 241 252 257
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