Product Summary

350 mains Main Journal Style, 3.480" Engine Stroke

    Comes as a Kit

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    Key Specs

    MFG. Part #91510223
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleDish
    Piston MaterialHypereutectic Aluminum
    See more specs

    Need To Know

    Quick and Easy Returns

    Return Policy

    Speedway Motors 91510223 Details

    These rotating assembly engine rebuild kits are designed for street use and include Keith Black Hypereutectic pistons, Speedway 5140 I-beam rods and a Speedway Cast Steel crankshaft. Rings and bearings not included. Journals are standard size. Must use Clevite H-series bearings or equivalent.

    These assemblies will require balancing either by us or your machine shop.  All balancing is done with our state-of-the-art Hines balancer by race mechanics with over 30 years of experience!  A kit purchased with the optional balance job will ship in 24-48 hours.

    NOTE: Piston rings are not included and must be purchased separately.

     

     

    • Speedway Cast Steel Crankshaft
      • Two-piece rear main
      • 80-60-06 cast steel
    • Speedway 5140 I-Beam Connecting Rods
      • Heat treated, shot peened and magnafluxed
      • 5.7 " length
      • Bushed pin
      • 658 grams
      • Set of 8 rods
    • KB Hypereutectic Dished Pistons
      • T-5 heat treated aluminum construction
      • 4.000 " bore pistons available in .030, .040, or .060 sizes
      • 4.125 " bore pistons available in .030 or .040 sizes
    • Speedway Cast Steel Crankshaft
      • Two-piece rear main
      • 80-60-06 cast steel
    • Speedway 5140 I-Beam Connecting Rods
      • Heat treated, shot peened and magnafluxed
      • 5.7 " length
      • Bushed pin
      • 658 grams
      • Set of 8 rods
    • KB Hypereutectic Dished Pistons
      • T-5 heat treated aluminum construction
      • 4.000 " bore pistons available in .030, .040, or .060 sizes
      • 4.125 " bore pistons available in .030 or .040 sizes

    Speedway Motors 91510223 Specifications

    KEY SPECS
    MFG. Part #91510223
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleDish
    Piston MaterialHypereutectic Aluminum
    GENERAL
    Main Journal Style350 mains
    Engine Stroke3.480"
    Connecting Rod Length5.700"
    Connecting Rod MaterialForged 5140 Steel
    Connecting Rod Weight588 grams
    Connecting Rod Bolt Diameter3/8"
    Piston Weight528 grams
    Piston Ring StyleA
    Crankshaft MaterialCast Steel
    Rear Main Seal Style2-piece
    Wrist Pin Diameter.9272"
    Wrist Pin Weight145 grams
    Main Journal Diameter2.448"
    Rod Journal Diameter2.10"
    Coated BearingNo
    Sold in QuantityKit

    Questions & Answers

    1 Question • 1 Answer

    what is the piston dish cc's

    by nickoli

    • 10 years ago

    1 answer

    1 of 1 questions shown

    Fitment

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    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

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    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

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    • Gen 1 L46 Small Block Chevy

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    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

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    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

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    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

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    • Gen 1 L65 Small Block Chevy

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    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

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    • Gen 1 L65 Small Block Chevy

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    • 2-Piece Rear Main Chevy 350

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    • 350 Chevy Small Block V8

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