Product Summary

Flat Top w/ 2 valve reliefs Piston Style, 3.000" Stroke

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    Key Specs

    MFG. Part #
    Piston StyleFlat Top w/ 2 valve reliefs
    Piston MaterialHypereutectic Aluminum
    Wrist Pin IncludedYes
    Wrist Pin StylePress-Fit or Floating
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    Need To Know

    Quick and Easy Returns

    Return Policy

    Details

    Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

    • 390 Hypereutectic alloy

    • Fully machined crowns and valve reliefs

    • Drilled oil drain backs

    • Full floating wrist pins

    • Triple wound spiral locks

    • Reflective alloy allows 2% power increase

    • Quench dome technology minimizes deterioration

    • Zero deck quench designs

    For Ford 302 c.i. (4.00" bore x 3.00" stroke). Use piston ring Style A (5/64", 5/64", 3/16").

    Item Details

    C/R 64cc: 9.0, C/R 69cc: 8.5
    Bore and Stroke: 4.00" x 3.00"
    Rod Length: 5.09" Ring Style: A

    Charts

    Specs

    • Pin Diameter:  .912"

    CARB Warning

    For race/ off road use only

    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. 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
    Piston StyleFlat Top w/ 2 valve reliefs
    Piston MaterialHypereutectic Aluminum
    Wrist Pin IncludedYes
    Wrist Pin StylePress-Fit or Floating
    GENERAL
    Piston Diameter
    Stroke3.000"
    Connecting Rod Length5.090"
    Piston Weight570 grams
    Piston Ring StyleA
    Wrist Pin Diameter0.9120"
    Wrist Pin Weight143 grams
    Top Ring Thickness5/64"
    Second Ring Thickness5/64"
    Oil Ring Thickness3/16"
    Compression 64cc =9.0 : 1
    GTIN Code
    NotesSet includes a quantity of 8 pistons.
    Sold in QuantitySet

    Ratings & Reviews

    5

    2 Reviews

    Overall Assessment

    Customers are extremely pleased with the product, particularly commending its high quality and excellent performance. Its practicality and usability are highlighted in many reviews, with recommendations stating it is a superior choice in comparison to competitors. Customers would also purchase the product again, reflecting positively on its durability and overall satisfaction.

    5

    2 reviews

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    yes

    5.0

    a year ago

    Cobra 2 Girl

    N.Wilkesboro N.C

    Verified

    Arrived fast very pleased

    Would Recommend

    Would buy it again

    5.0

    6 years ago

    Diamond miner

    Yellowknife Canada

    Verified

    Works great good quality

    Would Recommend

    Showing 2 of 2 reviews

    Questions & Answers

    7 Questions • 7 Answers

    What is the compression height of these pistons? Looking for 1.605.

    by 84 1/2 gt350

    • 3 years ago

    1 answer

    can you run over sized valves with these pistons ? my valve size is 1.94 and 1.60 . my current pistons would have to be fly cut for clearance.

    by kenny

    • 7 years ago

    1 answer

    Are these pistons capable for supercharger applications... And what's the rated horsepower these may handle.... Handle detonation at all?? Just trying to see the strength of these... Thanks again Speedway for peace of mind and great products

    by Charles McCormick

    • 8 years ago

    1 answer

    What is the cc volume of the valve reliefs? I have a 289 with 4.0" bore, 2.87 stroke with 59 cc chamber heads. Can assume .016 deck clearance and .03 compressed head gasket thickness. Looking for 9.5:1 to 10:1 ratio but need to know valve relief size for most accurate estimate.

    by twal

    • 10 years ago

    1 answer

    What rings would you recommend with these?

    by Dustin

    • 10 years ago

    1 answer

    Using this piston with the Flo Tek aluminum head #7223000 with 58cc chambers, what would the compression ratio come out to? By the way, thank you and Speedway for this great Q & A service!!!

    by Tim

    • 10 years ago

    1 answer

    Is this one for pressed or bushed rod bolt?

    by

    • 14 years ago

    1 answer

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