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Edelbrock 79549

E-CNC 355 Rectangle Port Cylinder Head for Big Block Chevy

Edelbrock 79549

350-79549

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$892.42
Edelbrock 79549 E-CNC 355 Rectangle Port Cylinder Head for Big Block Chevy $892.42
To order this item contact Customer Service at 1-800-345-4545.
  • Big Block Chevy 396-502ci
  • Intake Ports 354cc (LH) 334cc (RH)
  • Exhaust Ports 129cc
  • 118cc Combustion Chamber
  • 7/16" Rocker Studs
  • Bare Head, Sold Individually

  • Edelbrock 79549 Details

    E-CNC 355 Cylinder Head

  • 118cc Combustion Chambers

    Combustion Chamber Volume:118cc
    Intake Runner Volume:354cc (LH) / 334cc (RH)
    Exhaust Runner Volume:129cc
    Intake Valve Diameter:2.30'' (valves not included)
    Exhaust Valve Diameter:1.88'' (Valves not included)
    Valve Stem Diameter:11/32'' (Valves not included)
    Valve Guides:Manganese Bronze
    Deck Thickness:5/8''
    Valve Spring Diameter:N/A
    Valve Spring Maximum Lift:N/A
    Rocker Stud:N/A
    Guideplate:N/A
    Pushrod Diameter:N/A
    Valve Angle:24.5° x 4.4° (Intake) / 15.5° x 4.2° (Exhaust)
    Exhaust Port Location:Stock
    Spark Plug Fitment:14mm x 3/4'' Reach,
    Gasket Seat


    Valve LiftIntakeExhaust
    .200''155129
    .300''235181
    .400''292214
    .500''330241
    .600''354252
    .700''368257
    Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O

  • Specifications:

    Type
    Bare
    Engine Make/Size
    Chevy Big Block (396-502)
    Usage
    Competition
    Emission
    Non-Emissions
    Cylinder Head Type
    Rectangular Port
    Preparation
    Requires Professional Preparation (Bare)
    Finish
    Cast Steel
    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    Yes
    CNC-Machined Exhaust Runner
    Yes
    CNC-Machined Intake Runner
    Yes
    Combustion Chamber Volume (cc)
    118
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Bare
    Damper Spring Included
    No
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Rectangular
    Exhaust Runner Volume (cc)
    142
    Exhaust Valve Angle
    15.5/4.2
    Exhaust Valve Diameter (in.)
    1.88
    Exhaust Valves Included
    No
    Guideplates Included
    No
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    344cc/352
    Intake Valve Angle
    24.5/4.4
    Intake Valve Diameter (in.)
    2.3
    Intake Valves Included
    No
    Locks Included
    No
    Machined for O-Ring
    No
    Oiling Style
    Through pushrod
    Quantity
    Sold individually
    Retainers Included
    No
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Straight
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    No
    Valve Springs Included
    No
    Valve Stem Seals Included
    No
    Manufacturer's Part Number:
    79549

    E-CNC 355 RECTANGLE PORT
    BIG-BLOCK CHEVY


    Edelbrock E-CNC rectangular port cylinder heads for big-block Chevy are an all new design that delivers maximum horsepower and torque in high performance street and light duty racing applications. To ensure consistency from port to port, the E-CNC heads are treated to a full CNC porting of the combustion chambers, intake and exhaust runners; this improves air-flow and overall performance potential These heads have a 24.5° x 4.4° intake valve angle, 15.5° x 4.2° exhaust valve angle, stock exhaust port locations, and the spark plug angles have been modified to produce a smooth flame front for increased fuel efficiency and maximum power. Two combustion chamber sizes are offered, 110cc and 118cc. These heads are equipped with high-quality valve springs for valve lifts of up to .700''.



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