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JEGS 514080

JEGS Small Block Chevy Cast Iron Vortec Cylinder Head

555-514080

made in usa
Free Shipping Ships

$338.99
JEGS Small Block Chevy Cast Iron Vortec Cylinder Head $338.99
Out of stock
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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 

    Material
    CastingIron
    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
    SpecificationsPressure
    Spring O.D.TypeMax LiftSeat LoadSolid Height
    1.250"Single0.475"80# @ 1.700"1.200"
    Accessories
    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
     IntakeExhaust
    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

    Specifications:

    Quantity
    Sold individually
    Cylinder Head Style
    Assembled
    Guideplates Included
    No
    Rocker Arm Studs Included
    Yes
    Combustion Chamber Volume (cc)
    64
    Intake Valve Diameter (in.)
    1.94
    Exhaust Valve Diameter (in.)
    1.5
    Intake Runner Volume (cc)
    170
    Engine Make/Size
    Chevy Small Block (262-400)
    Exhaust Runner Volume (cc)
    61
    Outside Diameter of Outer Spring (in.)
    1.25
    Maximum Valve Lift (in.)
    0.475
    Number of Springs Per Valve
    Single
    Rocker Arm Nut Thread Size (in.)
    3/8"-24
    Guideplate Pushrod Size (in.)
    5/16"
    Material
    Cast Iron
    Shipping Weight:
    47.37
    Package Height:
    21.500
    Package Depth:
    6.400
    Package Width:
    9.700

    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.

    Features:

    • 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.

    514080 is rated 3.0 out of 5 by 1.
    Rated 3 out of 5 by from OK I purchased a pair to replace the 193 TBI heads I had on my van. The heads are OK, but have very poor work under the valve seats, some ports are shifted making a large step between the port and the seat. It takes a bit of clean up to make it right. I have used much cleaner castings in this area. For the price I am not unhappy, just glad I looked before just bolting them on. The heads do have some type of valve guide liner.
    Date published: 2018-11-06
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    How do these heads compare to GM Performance Vortec heads? I’ve read about the GM version prone to cracking. Are the guides in the Jegs heads really bronze as stated in the specification list? Do these heads require self aligning rocker arms?

    Asked by: wickster73
    these are an improvement over the stock heads and do have bronze guides. If you use a guidplate you do not need self aligning rocker arms.
    Answered by: Rusty B
    Date published: 2018-11-04

    are these ready to install or is there assemble involved valve and springs?

    Asked by: tacotime
    These heads are ready to install out of the box.
    Answered by: Rusty B
    Date published: 2018-09-17

    Would these be smog legal In California on a 1990 blazer with a 350

    Asked by: Joe60
    No, these do not show a CARB exemption number.
    Answered by: Rusty B
    Date published: 2018-08-28

    Are the spring retainers machined to accept a larger lift spring? Looking to run around a .500 lift spring.

    Asked by: C Cooper
    You can change these springs out to one that will work with a .500" lift camshaft.
    Answered by: Rusty B
    Date published: 2018-08-16

    Will these heads work with the edelbrock preformer rpm intake part# 7101

    Asked by: RaymondJ355
    No, these are vortec heads and will require the vortec style intake manifold.
    Answered by: Rusty B
    Date published: 2018-08-03

    I want to put these on a mild SBC 350 would I need to run guide plates or no ?

    Asked by: billys
    Guide plates are recommended, but may not be required depending on the rocker arms used.
    Answered by: Rusty B
    Date published: 2018-08-02

    I have a marine comp cam with .477 exhaust lift... Will my cam work with these heads seen how they say.475 max left?? Don't know if that small amount would hurt anything or not...thx.

    Asked by: Ynot311
    These should work in this application, but you will need to check for coil bind and valve spring clearance once these are installed.
    Answered by: Rusty B
    Date published: 2018-08-01

    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
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