Product Summary

302, 327, 350, 400, Assembled Cylinder Head Style

    Key Specs

    Cylinder Head StyleAssembled
    Material TypeAluminum
    Combustion Chamber Volume64cc
    Intake Runner Volume170cc

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    Direct bolt-on heads for Small Block Chevy 302, 327, 350, and 400 Stock and Super Stock racers. No port profiling or bowl blending of ports.

    • Out-of-the-Box Bolt-On Performance
    • Hand-Blended Intake and Exhaust Bowls
    • CNC-Matched Intake/Exhaust Ports in Std Location
    • Thicker Deck Surfaces than Other Brands

    Edelbrock E-Tec cylinder 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. Cylinder head will 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.



    ·  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: Maganese bronze

    ·  Deck thickness: 5/8"

    ·  Valve spring diameter: 1.46"

    ·  Valve spring maximum lift: .575"

    ·  Rocker stud: 3/8"

    ·  Guideplate: Hardened steel

    ·  Pushrod diameter: 5/16"

    ·  Valve angle: 23°

    ·  Exhaust port location: Stock


    ·  Spark plug fitment: 14mm x .750 reach, gasket seat


    MFG. Part #60975
    Cylinder Head StyleAssembled
    Material TypeAluminum
    Combustion Chamber Volume64cc
    Intake Runner Volume170cc
    CARB EO#
    Exhaust Runner Volume70cc
    Combustion Chamber Volume Range60cc - 69cc
    Intake Runner Volume Range170cc - 179cc
    Exhaust Runner Volume Range70cc - 79cc
    CNC-Machined RunnersNo
    CNC-Machined Combustion ChamberNo
    Spark Plug StyleStraight
    Intake Port LocationRaised
    Exhaust Port LocationStandard
    Intake Valve Diameter1.940"
    Intake Valves IncludedYes
    Intake Valve Angle23
    Exhaust Valve Diameter1.550"
    Exhaust Valves IncludedYes
    Valve Spring IncludedYes
    Spring Diameter1.460"
    Damper Spring IncludedYes
    Number of Springs Per ValveDual
    Maximum Lift0.600"
    Machined for O-RingNo
    Valve Seat Machine Style3-angle
    Valve Seats MachinedYes
    Valve Seat MaterialPowdered Metal
    Valve Stem Seals IncludedYes
    Valve Stem Seal TypePositive Stop
    Valve Guides IncludedYes
    Valve Guide MaterialManganese Bronze
    Locks IncludedYes
    Lock Style7 Degree
    Retainers IncludedYes
    Retainer MaterialSteel
    Guideplates IncludedYes
    Guideplate Pushrod Size0.3125"
    Rocker Arms IncludedNo
    Rocker Arm Studs IncludedYes
    Rocker Arm Nuts IncludedNo
    Oiling StyleThrough Pushrod
    Heat CrossoverNo
    Steam Holes DrilledNo
    Accessory Bolt Holes DrilledYes
    Valve Cover Mounting StyleCenter and Perimeter Bolt
    NotesUses 14mm spark plugs with 3/4" reach, and flat gasket seals
    Sold in QuantityEach
    GTIN Code085347609758