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Edelbrock 60975 - Edelbrock Performer RPM E-TEC Aluminum Cylinder Heads for Small Block Chevy



Edelbrock 60975 - Edelbrock Performer RPM E-TEC Aluminum Cylinder Heads for Small Block Chevy

Part Number: 350-60975

Performer RPM E-TEC 170 Cylinder Head
  • 170cc Intake Ports
  • 64cc Combustion Chambers
  • 1.94'' In/1.55'' Ex Valves
  • 1.46'' Valve Springs, .575'' Max Lift
  • Hydraulic Roller Camshaft Springs
  • Assembled, Sold Individually
  • $763.78

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    Made In USA
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    Edelbrock 60975 - Edelbrock Performer RPM E-TEC Aluminum Cylinder Heads for Small Block Chevy Details

    Performer RPM E-TEC 170 Aluminum Cylinder Heads

    Edelbrock E-Tec heads are replacements for 302, 327, 350 & 400 c.i.d. S/B Chevy engines with ''Vortec-style'' manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance. A unique combustion chamber design positions the spark plug closer to the center of the cylinder, promoting a more efficient combustion resulting in more power. These heads include an adjustable rocker stud and guide plate set-up for use with adjustable rockers or washers to properly position the stud height to accommodate factory style self-aligning rocker arms. They have 20% more exhaust flow than cast iron Vortec heads, great performance up to 6000 rpm and can produce 9.5:1 compression with stock pistons in 350 cubic-inch engines. RPM E-Tec heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds. E-Tec 170 heads are 50-state street legal.

    Installation Note: To use stock rockers on S/B Chevy heads, .100'' longer than stock pushrods are required. S/B Chevy heads may not be used on engines with less than 4" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450'' valve lift.

    Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC. They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.

    Combustion Chamber Volume:64cc
    Intake Runner Volume:170cc
    Exhaust Runner Volume:70cc
    Intake Valve Diameter:1.94''
    Exhaust Valve Diameter:1.55''
    Valve Stem Diameter:11/32''
    Valve Guides:Manganese Bronze
    Deck Thickness:5/8''
    Valve Spring Diameter:1.46''
    Valve Spring Maximum Lift:0.575''
    Rocker Stud:3/8''
    Guideplate:Hardened Steel
    Pushrod Diameter:5/16''
    Valve Angle:23°
    Exhaust Port Location:Stock
    Spark Plug Fitment:14mm x 3/4'' Reach,
    Gasket Seat

    Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    Type
    Complete
    Usage
    Street/Performance
    Emission
    N/A
    Cylinder Head Type
    Standard
    Preparation
    Bolt On (Not Required)
    Finish
    Cast Aluminum
    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    64
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Runner Volume (cc)
    70
    Exhaust Valve Diameter (in.)
    1.55
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Raised
    Intake Runner Volume (cc)
    170
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    1.94
    Intake Valves Included
    Yes
    Lock Style
    7 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.6
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.46
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    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
    Center and perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    3-angle
    Valve Seat Material
    Powdered metal
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seal Style
    Positive stop
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    60975

    Engineered to greatly increase performance and efficiency, E-TEC heads fit SB-Chevy 302-400ci engines with ''Vortec'' style intake manifolds. These powerful heads incorporate Edelbrock's high-quench combustion chamber which promotes a more uniform atomization of the air/fuel mixture for more power. Spark plugs have been positioned closer to the center of the cylinder for more efficient combustion. Swirl-polished stainless steel valves provide maximum flow. They accept center bolt or standard valve covers, work with most stock exhaust manifolds and have intake and exhaust ports that are .200'' taller than typical SB-Chevy heads. Match these heads with an Edelbrock Vortec intake manifold for the best results.

    RPM E-Tec heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds.

    Performer RPM E-TEC 170
  • 20% more exhaust flow than cast iron Vortec heads, good power up to 6,000 RPM
  • 64cc combustion chambers produce 9.5:1 compression with stock pistons on a 350ci engine
  • E-Tec 170 heads are 50-state street legal, E.O. Number D-215-49

    Performer RPM E-TEC 200
  • Outflow similar aluminum heads by 10% on the intake and 17% on the exhaust side
  • Make power up to 6,500 RPM
  • 64cc combustion chambers produce 10.2:1 compression with flat-top pistons in 350ci engines
  • CARB E.O. number pending

    Performer RPM E-TEC Aluminum Cylinder Head Specifications
    Performer RPM E-Tec:170200
    Combustion Chamber Volume64cc
    *Intake Runner Volume170cc200cc
    *Exhaust Runner Volume70cc80cc
    *Intake Valve Diameter1.94"2.02"
    *Exhaust Valve Diameter1.55"1.60"
    Valve Stem Diameter11/32"
    Valve GuidesManganese Bronze
    Deck Thickness5/8"
    Valve Spring Diameter1.46"
    Valve Spring Maximum Lift0.575"
    Rocker Stud3/8"
    GuideplateHardened Steel
    Pushrod Diameter5/16"
    Valve Angle23°
    Exhaust Port LocationStock
    Spark Plug Fitment14mm x 3/4" reach, gasket seat
    Made InUSA
    *Differences Between The 170 & 200 Heads