• GMP19170538.jpg
    • Chevrolet Performance Big Block Chevy Bare Engine Block, 4.250 in Bore, 9.800 in Deck | 19170538
    • GMP19170538.jpg

    Chevrolet Performance Big Block Chevy Bare Engine Block, 4.250 in Bore, 9.800 in Deck | 19170538

    Vendor: Chevrolet Performance Parts
    Part Number: 19170538
    $2,738.88

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
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    Product DetailsFAQReviewsRelated Products

    This iron bare block is a Mark IV / Gen VI style Big Block Chevy casting for 454 cubic inch class builds. It ships as a bare block with four-bolt main caps and a one-piece rear main seal register.

    Specifications:

    • Type: bare engine block
    • Family: Mark IV / Gen VI Big Block Chevy
    • Bore: 4.250 in
    • Deck height: 9.800 in
    • Main caps: 4-bolt
    • Rear seal: 1-piece
    • Material: iron
    • Quantity: each
    • Part number: 19170538

    Applications:

    • Big Block Chevy Mark IV and Gen VI based engine builds (454 cubic inch class)

    FAQ

    What bore and deck height does this block have?

    It has a 4.250 in bore and a 9.800 in deck height.

    Does the block use two-bolt or four-bolt mains?

    It uses four-bolt main caps for added bottom-end strength.

    Is this a complete engine?

    No. Part number 19170538 is a bare block only, without rotating assembly or cylinder heads.

    What rear main seal style does it accept?

    It is machined for a one-piece rear main seal.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy
    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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