Wiseco® K398X7 - Professional™ Piston Kit

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    Notes:
    • This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.
    Authorized Dealer
    $982.99
    In Stock (1)
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    Vehicle Fitment

    Chevy
    Pontiac

    Specifications

    Bore Size
    4.070"
    Connecting Rod Length
    6.098" / 6.125"
    Compression Height
    1.304"
    Includes Pins
    S643
    Quantity
    Set of 8
    Recommended Ring Set
    4072GFX
    Strock
    3.622"
    Weight
    488
    Dome Volume
    -3.2cc
    Compression Ratio @ 65cc
    10.6:1
    Compression Ratio @ 67cc
    10.4:1
    Compression Ratio @ 68cc
    10.2:1
    Compression Ratio @ 70cc
    10:1

    Includes

    • Piston
    • Rings

    Features

    • Valve Pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized
    • Piston Crown shapes designed to promote maximum Intake Charge efficiency through scavenging mixture "Cross Flow" during intake and exhaust valve overlap. More fuel and air equals more horsepower
    • Piston Domes designed for optimal quench during the compression/combustion cycle, resulting in resistance to detonation and preignition
    • The end result is longer engine life and increased horsepower potential
    • Precision machined ring grooves with proper orifice/accumulator volume feature calculated groove root diameters and axial widths, providing excellent surface finish and flatness, maximum ring seal and minimized blow-by and oil consumption
    • World class, ISO Certified, forging facility that utilizes the latest technologies - Featuring complex forged shapes, advanced materials, and feature-aligned grain flow technology
    • Complex Piston skirt profiles that reduce power robbing friction, yet promote stability in the bore for optimum ring seal

    Product Details

    Professional™ Piston Kit (K398X7) by Wiseco®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost. Enjoy superior performance by getting this premium-grade Sniper product that is throughly engineered to help take the performance of your fuel system to the next step delivering unprecedented levels of reliability and strength. The use of the finest materials and advanced technology makes this product unbeatable in durability and quality.

    Brand:
    Part Number:
    K398X7

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