E-Street™ 290 Cylinder Heads For B/B Chevy


E-Street™ 290 Cylinder Heads For B/B Chevy by Edelbrock
 
  • Cylinder Head Specifications:
  • Combustion chamber volume: 110cc
  • Intake runner volume: 290cc
  • Exhaust runner volume: 110cc
  • Intake valve diameter: 2.19"
  • Exhaust valve diameter: 1.88"
  • Valve stem diameter: 11/32"
  • Valve guides: Manganese bronze
  • Deck thickness: 9/16"
  • Valve spring diameter: 1.55"
  • Valve spring maximum lift: .700"
  • Rocker stud: 7/16"
  • Guideplate: Hardended steel
  • Pushrod diameter: 3/8"
  • Valve angle: 26°
  • Exhaust port location: Stock
  • Spark plug fitment: 14mm x 3/4 reach, gasket seat
 
    E-STREET™ 290 OVAL PORT B/B CHEVY FEATURES:
  • Designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range
  • Includes hardened spring cups and Heli-CoilŪ threaded inserts in the rocker stud bosses for increased strength; these are the details that most low-cost competitors leave out of their heads
  • These heads are sold separately and Made in the USA!
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin
EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET CAMSHAFT APPLICATIONS
E-Street Oval Port - 50449 50459
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.
#50459: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 74 143 207 250 284 309 -
Exhaust 71 128 153 178 200 218 -
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