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Sealed Power Hypereutectic Pistons 454

844-H581CP


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Hypereutectic Pistons 454
$359.99
Hypereutectic Pistons
  • Big Block Chevy 454 with 6.135 Rod
  • .340 Dome Piston with Two Valve Reliefs
  • 10.72 Compression Ratio with 106.9cc Cylinder Head
  • Standard Bore
  • Set of 8
  • Free Shipping - Ships on 06/12/24
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    Floating pin are pressed? What rods will work?

    Asked by: Vence
    The Speed Pro 844-H581CP piston can use float or pressed pins.
    Answered by: jshook
    Date published: 2024-02-15

    What is the pin size on these pistons?

    Asked by: Vence
    The pin on the Speed Pro 844-H581CP piston is stock .990 pin size.
    Answered by: jshook
    Date published: 2024-02-15

    What modifications are needed for this piston to work with a stock 454

    Asked by: iarreola
    You will have to make sure your bore size is correct. This piston is made to use the stock rods, you will need to check piston to valve clearance also.
    Answered by: Rusty B
    Date published: 2019-04-04
    • y_2024, m_4, d_23, h_5CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.41
    • cp_1, bvpage1
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    Technical Specs:Material: HypereutecticBore: 4.0394'' (102.60mm)Piston Top: -11.23cc Oval Dish Top without Valve ReliefsCompression Height: 1.612"Rod Length: StockStroke: StockCompression Ring Groove: 1.5mmSecond Ring Groove: 1.5mmOil Ring Groove Width: 4.0mmFull Length: N/APin Size: 0.9842" O.D. (24.999mm)Pin ...
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