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Chevrolet Performance 10066034

350 SB Bare Engine Block

Chevrolet Performance 10066034


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Truck Freight: $119.00
Chevrolet Performance 10066034 350 SB Bare Engine Block $838.56
350 Bare Block
  • 9.025 Deck Height
  • 2-Piece Rear Main Seal
  • 4-bolt Main Gray Iron Caps
  • Max Stroke 3.750

  • Chevrolet Performance 10066034 Details

    Performance Small Block Bare Block

    Note: This block is finished honed and has dipstick openings on both sides.


    Rear Main Seal Style
    Cam Bearings Included
    Cylinder Bore as Shipped (in.)
    Cylinder Bore Diameter (in.)
    Deck Height (in.)
    Engine Block Material
    Cast iron
    Engine Block Style
    Stock/OEM standard deck
    Engine Block Weight (lbs.)
    Finished Cylinder Bores
    Freeze Plugs Included
    Main Bearings Included
    Main Bolt Style
    Main Cap Fasteners Included
    Main Cap Material
    Cast iron
    Main Caps Included
    Main Journal Type
    350 mains
    Sold individually
    Raised Cam Location
    Manufacturer's Part Number:

    Chevrolet Performance bare blocks are the right choice for street car rebuilds or to start your own mild engine project. They come in the same dimensions that you are already familiar with and are produced to the high level of quality that Chevrolet is famous for. These are brand new castings that are machined to exact tolerances and delivered to you at an affordable price. These blocks are designed for street engines that demand good strength and a high level of durability! Available for all popular GM vehicle lineups.

    Does Chevrolet Performance 10066034 fit your vehicle?

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    • EngineType: ALL
    • SubModel: ALL


    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    10066034 - Chevrolet Performance Bare Engine Blocks is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Great Buying Experience I do business with JEG'S on a regular basis, and have never had a single complaint with any of my purchases from JEG'S. I will continue to do business with JEG'S with confidence!
    Date published: 2016-05-19
    • y_2018, m_5, d_25, h_5
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    • clientName_jegs

    can i use this to replace my gm 5.0 gen 1 small block from my boat?

    Asked by: NikB
    This is a standard Gen I small block Chevy block.
    Answered by: Rusty B
    Date published: 2018-04-11

    Will this block accept a 3.75" stroke crank without clearancing bottom of bore?

    Asked by: BodyGuy71
    This block still requires minor clearancing.
    Answered by: Matt_B
    Date published: 2018-03-31

    Can this block be used with 327 crank and rods? And what bore does the block have?

    Asked by: MalibuWagonMan
    This can be used with a large journal 327 crankshaft and rods, and the bore is 4.00".
    Answered by: Ray E
    Date published: 2018-02-24

    The cylinder bores are finished , what grit hone was used ? Is the cylinder set up for cast or forged pistons ? WHAT IS THE BEST RING TO USE FOR THIS BLOCK ? WILL I NEED TO HAVE ANY WORK DONE OR IS THIS BLOCK READY FOR ASSEMBLY ?

    Asked by: Ted NEW YORK
    The specs you are looking for are not available, this is the information that is provided.Each cylinder block is machined to production-spec tolerances and is manufactured to the exact specifications of pre-1986 engines. The can be used with any piston and any style ring.
    Answered by: Rusty B
    Date published: 2018-01-11

    can u install a roller cam in this block as it is

    Asked by: bosshoss
    Yes you can but you must use a retro fit cam.
    Answered by: BrandonJ
    Date published: 2017-11-26

    are the blocks clearanced for the bigger rod bolts?

    Asked by: jim rad
    These blocks do not have added clearance for larger rods, this you will need to do or have done by a local machinist.
    Answered by: Jegs Tech
    Date published: 2017-11-01
    • y_2018, m_5, d_25, h_5CST
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations