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Chevrolet Performance 10105123
Mail-In Rebate
Chevrolet Performance® Summer Block Party Rebate
Expires on: September 30, 2019

Purchase Chevrolet Performance Engine Blocks Or Cylinder Heads and Receive up to $200 On a Prepaid Visa!

Chevrolet Performance 350 SB Bare Engine Block



Truck Freight:$119.00
Chevrolet Performance 350 SB Bare Engine Block $1,132.73
Out of stock
2 left in stock
350 Bare Block
  • 9.025 Deck Height
  • 1-Piece Rear Main Seal
  • 4-bolt Gray Iron Main Caps
  • Max Stroke 3.750
  • Chevrolet Performance 10105123 Details

    Performance Small Block Bare Block

  • Crankshafts with 2-piece seals can be installed with 809-10051118 Adapter

  • Specifications:

    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
    Rear Main Seal Style
    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.

    Will this accept a manual fuel pump??

    Asked by: Philllll
    Yes, this block has the boss for the manual fuel pump built in.
    Answered by: Rusty B
    Date published: 2018-08-09

    Is this finished to 4.00 or less than 4.00in?

    Asked by: Mad dog shaw
    This will finish to 4.000"
    Answered by: Rusty B
    Date published: 2018-07-03

    What is casting number? What is bore size?

    Asked by: Mad dog shaw
    This block will have a standard 4.000" bore, the casting numbers are not available for this series of blocks.
    Answered by: Rusty B
    Date published: 2018-05-24

    Could I run a Xtreme energy hydraulic roller comp cam in this block even if it says cam fits blocks from 55-98 not originally equipped for engines with roller cams

    Asked by: Wilbland
    You can use one of the retrofit hydraulic roller cam kits with this block.
    Answered by: Rusty B
    Date published: 2017-11-10

    does this work with the edelbrock performer rpm do it urself crate engine kit

    Asked by: scherer
    Yes, this block would work with an Edelbrock top end kit.
    Answered by: Rusty B
    Date published: 2017-09-13

    Would I have to have this machined or is it ready to build?

    Asked by: Kenny923
    No, the block still need to be finished, honed and clean by a machine shop.
    Answered by: BrandonJ
    Date published: 2019-01-04
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