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Product Summary

350, 350 mains Main Journal Style, 3.480" Engine Stroke

    Comes as a Kit

    Key Specs

    MFG. Part #9151036
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleFlat Top w/ 4 valve reliefs
    Piston MaterialHypereutectic Aluminum

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    Details

    Speedway introduces our new 1-pc rotating assembly engine rebuild kits, with an optional balance job. Includes new cast steel 1-pc rear main seal crank, Speedway 5140 connecting rods w/ ARP bolts and Hyperuetectic pistons. Cranks are new so they use standard size main and rod bearings. 

    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.

    Item Details

    Flat top, 4 valve relief

    Kits include:

    • Scat Cast Steel Crankshaft
      • One-piece rear main
      • 80-60-06 cast steel construction
      • Fatigue-resistant with near forged steel endurance
      • Standard size journals
    • Speedway 5140 I-Beam Claimer Connecting Rods
      • 5140 heat treated steel
      • Shot peened and magnafluxed
      • 5.7 " length
      • Press pin
      • 646 grams
    • KB Signature Series Hypereutectic Claimer Pistons
      • Coated skirts
      • Wrist pin lock rings
      • T-5 hypereutectic construction
      • Can be used with press fit or floating wrist pins

    Kits include:

    • Scat Cast Steel Crankshaft
      • One-piece rear main
      • 80-60-06 cast steel construction
      • Fatigue-resistant with near forged steel endurance
      • Standard size journals
    • Speedway 5140 I-Beam Claimer Connecting Rods
      • 5140 heat treated steel
      • Shot peened and magnafluxed
      • 5.7 " length
      • Press pin
      • 646 grams
    • KB Signature Series Hypereutectic Claimer Pistons
      • Coated skirts
      • Wrist pin lock rings
      • T-5 hypereutectic construction
      • Can be used with press fit or floating wrist pins

    Specifications

    KEY SPECS
    MFG. Part #9151036
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleFlat Top w/ 4 valve reliefs
    Piston MaterialHypereutectic Aluminum
    GENERAL
    Main Journal Style350 mains
    Engine Stroke3.480"
    Connecting Rod Length5.700"
    Connecting Rod MaterialForged 5140 Steel
    Connecting Rod Weight646 grams
    Connecting Rod Bolt Diameter3/8"
    Piston Weight528 grams
    Piston Ring StyleA
    Crankshaft MaterialCast Steel
    Rear Main Seal Style1-piece
    Wrist Pin Diameter.9272"
    Wrist Pin Weight102 grams
    Main Journal Diameter2.448"
    Rod Journal Diameter2.10"
    Bearing ConstructionBi-metal
    Bearing UndersizeStandard
    Narrowed BearingYes
    Coated BearingNo
    Sold in QuantityKit