Top Categories
All Categories

Top Categories

All Categories

Shop By Vehicle
Account Login
Gift Cards
Track Order
JEGS 514002

JEGS Cylinder Head Small Block Chevy


made in usa
Free Shipping Ships
Save $20 Off $250, $50 Off $500, $100 Off $1,000, $150 Off $2,000. Promo Code: SAVEMORE exclusions apply

SAVE $82.45
JEGS Cylinder Head Small Block Chevy $742.04
Out of stock
2 left in stock
Cylinder Head
  • Small Block Chevy
  • 180cc Intake Ports
  • 64cc Combustion Chambers
  • 2.020"Int./1.600"Exh. Valves
  • 1.250" Valve Springs, .525" Max Lift
  • 3/8" Rocker Studs
  • Straight Plug
  • Sold 1/pkg
  • Items You May Also Consider

    JEGS 514002 Details

    180cc Intake Runner


    CastingA356-A Virgin Grade, Heat Treated to T-6
    Valve GuidesManganese Bronze
    Valve SeatsAlloy, For use with Unleaded Gasoline
    Valve Train
    Rocker Stud Size3/8"-24
    Guide Plates5/16" Flat
    Pushrods5/16" Hardened, Must Check Length
    Spring RetainersChrome Moly Steel (7 Degree)
    Valve Locks7 Degree (HD)
    Spring LocatorI.D. Locator - 1.490" x 0.060"
    Valve Springs
    Spring O.D.TypeMax LiftCoil BindSeat LoadOpen Load
    1.250"Single0.525"1.160"100# @ 1.775"320# @ 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
    Flow GraphIntakeExhaust
    Port Volume180cc85cc
    Valve Diameter2.020"
    (Stainless Steel)
    (Stainless Steel)
    Valve Length4.910"4.910"
    Valve Stem Diameter11/32"11/32"
    Valve Stem Seal Diameter0.530" (PTFE)0.530" (PTFE)
    Port Dimension2.200"H x 1.300"W1.530"H x 1.545"W (D-Shape)
    Flow Rate263 CFM @ 0.600" Lift (28" H20)213 CFM @ 0.600" Lift (28" H20)
    GasketJEGS 555-210000
    or equivalent
    JEGS 555-210052
    or equivalent
    Torque Specification
    Rocker Studs45 ft/lbs.
    Manifold Bolts35 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
    Spark Plug Style
    Rocker Arm Nut Thread Size (in.)
    Guideplate Pushrod Size (in.)
    Shipping Weight:
    Package Height:
    Package Depth:
    Package Width:

    JEGS delivers performance right out of the box!

    Racing technology for your high performance street engine! JEGS small block Chevy cylinder heads are cast from Virgin A356 Aluminum and heat treated to a T6 Hardness for the ultimate quality and durability. They are then machined on the latest CNC machines for accuracy and precision. We use the most up to date technology to design our intake & exhaust runners and combustion chambers for maximum performance. Our choices of intake runner volumes, combustion chamber sizes, spark plug styles and valve spring sizes insure that we have a cylinder head to suit your needs. Our cylinder heads are assembled with premium parts such as manganese valve guides, stainless steel valves and chrome-moly retainers. They feature valve seats that are compatible with unleaded fuel and also accept both standard and center bolt valve covers.


    • Cast in the U.S.A.
    • Machined in the U.S.A.
    • Assembled in the U.S.A.
    • 3-Angle Competition Valve Job
    • Improved Combustion Chamber Design For Improved Efficiencies
    • 1/2" Deck Thickness
    • Exhaust Ports Raised 0.200" (Higher Than Stock OEM Iron Heads)
    • Raised Valve Cover Rails
    • Latest In Port Design For Both The Intake and Exhaust For Increased Horsepower and Torque
    • Premium parts and hardware
    • Up to 20 lbs. lighter per head than standard cast iron heads

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

    514002 - JEGS Small Block Chevy Cylinder Heads is rated 3.0 out of 5 by 3.
    Rated 5 out of 5 by from Great looking Ordered my heads and they arrived in the UK in under a week, that's amazing service, they look great and can't wait to get them fitted to the Vette
    Date published: 2018-03-07
    Rated 3 out of 5 by from jegs heads #514002 rocker studs striped when adjusting heads jegs would replace with same no thanks
    Date published: 2016-03-22
    Rated 1 out of 5 by from Low score on quality control I bought these after reviewing Car Craft's 8 Budget Heads Comparison. I liked the peak torque produced about 4,000 RPM with the combo used. When I received them they were still full of aluminum shavings from machine work. There were spots between the intake ports that were as thin as 1/16 of an inch. The exhaust ports also had about a 1/16 of an inch of material between the port and the bolt holes to mount the headers. The guide plates did not line up with the pushrod holes in the heads. The intake ports have an obstruction in the casting. I returned them and stepped up to a pair of AFR 180cc Street Eliminator's which I will review when I receive them. I have used cheaper heads than the Jeg's heads (ProStar) and the quality was better at 2/3 the price.
    Date published: 2014-11-02
    • y_2019, m_9, d_19, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_3
    • loc_en_US, sid_10001_10001_1533684, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    What spark plugs do I need ? 350 has been stroked 383 and will be using the Holley Sniper fuel injection system..

    Asked by: Etzael
    This plug will be a good choice - https://www.jegs.com/i/NGK-Spark-Plugs/739/R5671A-10/10002/-1
    Answered by: Rusty B
    Date published: 2018-08-28

    Will these heads fit on a ‘69 350 block? Thanks. 

    Asked by: Samson1984
    These are compatible with the '69 block.
    Answered by: Jon Jegs Tech
    Date published: 2019-03-01

    I have a stock buick 300 wondering if these heads will bolt on I know they’re simialar both being made by GM I am just trying to make it a bit of a better performer and there isn’t a lot out there for the 300 in the way of intakes and such. Thanks

    Asked by: Jay0311
    No, the Buick 300 engine is not the same architecture as the small block Chevy engine.
    Answered by: Rusty B
    Date published: 2018-01-12

    Hello, will this work with a hydraulic flat tappet cam specifically crower part #00243? Of not is there a version of this head for a non roller cam? Thanks -brian

    Asked by: Brian v
    This cylinder head is compatible with your camshaft.
    Answered by: Jon Jegs Tech
    Date published: 2017-12-05

    Do this include both cylinder heads? Or just one?

    Asked by: Maro118
    These are sold as each and not as a pair.
    Answered by: Jon Jegs Tech
    Date published: 2017-10-25

    JEGS Performance Products 514002 Cylinder Head Small Block Chevy, Do you have the CYLINDER HEAD FLOW DATA @ 28" H20 for this product?

    Asked by: minerwelder
    The flow data is shown on the web page on the detail tab.
    Answered by: Rusty B
    Date published: 2018-09-18
    • y_2019, m_9, d_17, h_18CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.13
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_6
    • loc_en_US, sid_10001_10001_1533684, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Easy Kits

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.