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Wiseco K554M785 78.5mm Piston Set for 1.6L Mazda Miata Turbo

Miata Turbo 1.6L Piston Set

11981560 - K554M785
These pistons are designed for Turbo Applications with lower compression ratios. The complete specifications are below.
If you have any questions or need assistance with piston information/application, please email us.

Features & Specs:

  • Stainless steel gas nitride top rings
  • Cast iron Napier hook second rings
  • Flex-vent oil rings with gas nitride scraper rails
  • ArmorGlide skirt coating
  • Necessary piston rings, pins and corresponding clips included (everything needed for your Miata engine rebuild)
  • Sold as a full set of four (4) pistons

  • Availability: Dependent on suppliers inventory
    Shipping: Drop Shipped. Shipping method dependent on source
    Pricing: $712.22
    Free U.S. Over $150



    83.50mm Option (.020 overbore), Wiseco Part Number: K554M785

    Specifications (mm / in):

    • Manufacturer's Part Number: K554M785
    • Piston Rings Included: Yes
    • Bore (in.): 3.090 in 
    • Bore (mm): 78.500mm
    • Stroke: 3.287 in.
    • Rod Length: 5.228 in.
    • Piston Style: Dish, with four valve reliefs
    • Piston Material: Forged aluminum
    • Compression Height (in.): 1.258 in.
    • Piston Head Volume (cc): +13.00cc
    • Wrist Pin Style: Press-fit or floating
    • Wrist Pin Retainers Included: Yes 
    • Wrist Pin Included: Yes
    • Pin Diameter (in.): 0.787 in.
    • File Fit: No
    • Gapless: No
    • Top Ring Thickness: 1.0mm
    • Top Ring Material: Steel
    • Top Ring Facing Material: Gas nitrided
    • Second Ring Thickness: 1.2mm
    • Second Ring Material: Cast iron
    • Second Ring Facing Material: Phosphate coated
    • Oil Ring Thickness: 2.8mm
    • Oil Ring Material: Stainless steel
    • Oil Ring Tension: Standard
    • Quantity: Sold as a kit

    Wiseco vs OEM Piston Specs Chart Wiseco XX Piston Rings Specifications


    Shipping Information

    • Item Requires Shipping
    • 5.0 lbs.
    • W8.0000” x H6.0000” x L12.0000”
    • Free U.S. Over $150
    • Drop Shipped. Shipping method dependent on source

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