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JEGS Small Block Chevy Cast Iron Vortec Cylinder Head

JEGS 514080

555-514080 NEW

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JEGS Small Block Chevy Cast Iron Vortec Cylinder Head $338.99
Small Block Chevy Cast Iron Vortec Cylinder Head
  • 170 cc Intake Ports
  • 64 cc Combustion Chambers
  • 1.94 in. Intake, 1.50 in. Exhaust Valves
  • 1.250 in. Valve Springs, 0.475 in. Max Lift
  • 3/8 in. Rocker Studs
  • Straight Plug
  • Sold Individually

  • JEGS 514080 Details

    170cc Intake Runner

     JEGS Cast Iron Vortec Cylinder Head for Small Block Chevy with a 170cc Intake Runner 

    Valve GuidesManganese Bronze
    Valve SeatsSteel
    Valve Train
    Rocker Stud Size3/8"-24
    Guide PlatesNot Included
    Pushrods5/16" Hardened, Must Check Length
    Spring RetainersChrome Moly Steel (7 Degree)
    Valve Locks7 Degree (HD)
    Spring LocatorI.D. Locator - 1.253" x 0.120"
    Valve Springs
    Spring O.D.TypeMax LiftSeat LoadSolid Height
    1.250"Single0.475"80# @ 1.700"1.200"
    Spark Plugs14mm x 3/4" Reach - Gasket Seat - 5/8" Hex
    Head BoltsJEGS 555-83400 or equivalent
    Head StudsStandard SB-Chevy
    Stud GirdleJEGS 555-20510 or equivalent
    Rocker ArmsStandard SB-Chevy for 3/8"-24 Stud
    Head GasketJEGS 555-210041 or equivalent
    Accessory Bolt LocationsStock Placement
    Flow Specifications
    Port Volume170cc61cc
    Valve Diameter1.940"1.500"
    Valve Length4.910"4.910"
    Valve Stem Diameter11/32"11/32"
    Valve Stem Seal Diameter0.500" (Rubber)0.500" (Rubber)
    Port Dimension1.080"H x 2.000"W1.500"H x 1.580"W (Rectangular)
    Flow Rate211.37 CFM @ 0.500" Lift (28" H20)157.41 CFM @ 0.500" Lift (28" H20)
    GasketJEGS 555-210003
    or equivalent
    JEGS 555-210050
    or equivalent
    Torque Specification
    Rocker Studs45 ft/lbs.
    Manifold Bolts11 ft/lbs.
    Head Bolts or StudsPer Manufacturers Specifications


    Sold individually
    Cylinder Head Style
    Guideplates Included
    Rocker Arm Studs Included
    Combustion Chamber Volume (cc)
    Intake Valve Diameter (in.)
    Exhaust Valve Diameter (in.)
    Intake Runner Volume (cc)
    Engine Make/Size
    Chevy Small Block (262-400)
    Exhaust Runner Volume (cc)
    Outside Diameter of Outer Spring (in.)
    Maximum Valve Lift (in.)
    Number of Springs Per Valve
    Rocker Arm Nut Thread Size (in.)
    Guideplate Pushrod Size (in.)
    Cast Iron
    Shipping Weight:
    Package Height:
    Package Depth:
    Package Width:

    JEGS Cast Iron Vortec Cylinder Head has fast burn combustion chambers and high-velocity intake and exhaust ports. This head performs great right out of the box but can be mildly ported and milled up to 0.040 in. and requires a Vortec-style intake manifold; modifying the head to accept an early intake manifold is not recommended. Assembled with premium parts such as manganese valve guides, and hardened steel retainers; JEGS Vortec Head fits all 1955-Present GM small blocks except LT1, LT4, and LS1-style engines.


    • Fast burn combustion chambers
    • High-velocity ports
    • 100% New Assembly
    • Direct Replacement for GM 906-062 Vortec

    JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.

    what is the valve spring Rate

    Asked by: jeep350
    These are the valve spring specifications that we have - Valve Springs Specifications Pressure Spring O.D. Type Max Lift Seat Load Solid Height 1.250" Single 0.475" 80# @ 1.700" 1.200"
    Answered by: Rusty B
    Date published: 2018-06-14

    Will these work on a 1998 k1500 5.0 litre?

    Asked by: JMF46
    These heads will work on any Vortec small block engine.
    Answered by: Rusty B
    Date published: 2018-06-13

    the picture shows screw in studs, do the heads have screw in studs as pictured or press in studs ?

    Asked by: 41 stude
    These heads have screw in studs.
    Answered by: Rusty B
    Date published: 2018-06-08

    The specs say 100% new assembly, what castings do you use? GM, EQ, Jeg's?

    Asked by: Steve AR
    These are new castings - Per our purchasing agreement with the manufacture we are not at liberty to give out the manufacture name. These are built to our specs and we warranty these for the period of 1 years from the date purchased.
    Answered by: Rusty B
    Date published: 2018-06-04
    • y_2018, m_7, d_20, h_24CST
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    Some parts are not legal for use in California or other states with similar laws / regulations