Product Summary

Dish Piston Style, 4.030" Piston Diameter

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    Key Specs

    MFG. Part #
    Piston StyleDish
    Piston MaterialHypereutectic Aluminum
    Wrist Pin IncludedYes
    Wrist Pin StylePress-Fit or Floating
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    Need To Know

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    Details

    These Keith Black Claimer Pistons (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (wrist pin and lockrings included).

    Set of 8 for Chevy 383 c.i. (4.000" bore x 3.75" stroke). Does not include piston ring set. Use Ring Style A.

    Item Details

    C/R 58cc=10.9, 64cc=10.2, 76cc=9.1
    Piston/Pin Weight: 594 g
    Rod Length: 5.7"

    Charts

    Specs

    • Comp Height 5.7" Rod -  1.433
    • Comp Height 6.0" Rod -  1.13
    • Pin Diameter -  0.9272

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Specifications

    KEY SPECS
    MFG. Part #
    BrandKeith Black
    Garage Sale TypeDiscontinued
    Piston StyleDish
    Piston MaterialHypereutectic Aluminum
    Wrist Pin IncludedYes
    Wrist Pin StylePress-Fit or Floating
    GENERAL
    Piston Diameter
    Stroke3.750"
    Connecting Rod Length5.700"
    Piston Weight594 grams
    Piston Ring StyleA
    Wrist Pin Diameter0.9272"
    Top Ring Thickness5/64"
    Second Ring Thickness5/64"
    Oil Ring Thickness3/16"
    Compression 58cc =10.9 : 1
    Compression 64cc =10.2 : 1
    Compression 76cc =9.1 : 1
    GTIN Code
    Sold in QuantitySet

    Ratings & Reviews

    5

    3 Reviews

    Overall Assessment

    Customers praise the product for its superior quality and affordability, particularly noting that the pistons are a preferred choice over marine dealers for SeaRay Mercruisers. They recommend the pistons for durability, even under intense heat and pressure. A standout feature is the dished design, which maintains a reasonable compression ratio in 383 boat motors.

    5

    3 reviews

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    383 pistons

    5.0

    3 months ago

    Rc

    La, ca.

    Verified

    Create affordable pistons.

    Would Recommend

    Good Quality Products

    5.0

    5 years ago

    Jake the FreeWay

    Atlanta GA

    Verified

    Got better pistons in way better price for my SeaRay Mercruiser than from any Marine dealer. Highly recommended.

    Would Recommend

    Appear to be nice quality pistons.

    5.0

    6 years ago

    Fast Forward

    Michigan

    Verified

    I've used Keith Black pistons before and have been happy with them. They're a quality part at a reasonable price. I needed a dished piston to keep the CR reasonable for my 383 boat motor. I've never encountered a anything but an extreme performance build where a hypereutectic piston wouldn't stand up to the heat and pressure!

    Would Recommend

    Showing 3 of 3 reviews

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