Beskrivning

The E-Street Cylinder Heads for GM LS3 are designed as premium quality bolt-on-ready cylinder heads for any high-performance or stock replacement application. The chambers are 69cc while the dual springs allow .660 lift camshafts. Edelbrock introduces its new E-Street 15-degree LS3 69cc cylinder heads (PN 77618) as a premium replacement option ensuring great power on any high-performance or stock GM LS3 engine build. These heads offer the best performance value of any aftermarket GM LS3 head. Sold in pairs and assembled with premium COMP Cams valve train components these LS3 heads are engineered with the same architecture as the factory head and all stock components will fit without issue. The assembled heads feature dual valve springs chromoly steel retainers heavy-duty stainless-steel valves and top-quality valve seals â?? all inspected and assembled by qualified Edelbrock technicians. The intake valve size is 2.165 while the exhaust is 1.590 . The Beehive Valve Springs allow up to .660 lift camshafts ideal for many mild to hot camshaft grinds. Edelbrock E-Street 15-degree LS3 cylinder heads are manufactured with premium aluminum alloy machined to the industry's tightest tolerances. They feature manganese bronze valve guides for extended wear with particular emphasis placed on holding precision tolerances on valve seat concentricity. This allows the valves to seal securely eliminating any leak-down and increasing cylinder pressures during engine operation. All Edelbrock cylinder heads feature patented Clean Cast Technology(TM) a revolutionary process that eliminates casting flaws and promotes a smoother internal surface finish for greater air and coolant flow. These benefits provide more power and increased cooling ability right out of the box. A unique dual spark-plug-pocket design allows you to use the factory-style tapered-seat spark plugs or gasket-seat spark plugs available in wider heat ranges for maximum tunability.

• Specifikationer

  • Retainer Diameter: 1.030 Inch
  • Valve Spring Type: Beehive
  • Guide Plates Included: No
  • Valve Spring Maximum Lift: .660 Inch
  • Valve Lock Style: 7 DD
  • Intake Port Location: Stock
  • Combustion Chamber Volume: 69 CC
  • Intake Valve Stem Diameter: 8 MM
  • CNC-Machined Combustion Chamber: No
  • Intake Port Shape: Rectangle
  • Material: Aluminum
  • Exhaust Port Shape: D-Port
  • Intake Valve Angle: 15 DD
  • Rocker Arm Nuts Included: No
  • Steam Holes Drilled: No
  • CNC Machined Exhaust Port: No
  • Spark Plug Style: 14mm x 5/8 hex .750" reach
  • Retainer Lock Style: 7 DD
  • Exhaust Valve Angle: 15 DD
  • Assembled: Yes
  • Quantity: Sold in Pairs
  • Intake Valve Job Diameter: 2.165 Inch
  • Valve Guide Size I.D.: 8 MM
  • Intake Runner Volume: 260 CC
  • Valve Guide Size O.D.: .502 Inch
  • Valve Cover Mounting Style: Center bolt LS3 compatible
  • Valve Spring Diameter: 1.282" / 1.077"
  • Exhaust Valve Stem Diameter: 8 MM
  • Valve Seat Material: Ductile Iron
  • Exhaust Valve Job Diameter: 1.590 Inch
  • Retainer Material: Steel
  • Valve Lock Material: Tool Steel
  • CNC Machined Intake Port: No
  • Exhaust Port Location: Stock
  • Valve Guide Material: Manganese Bronze