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Product Summary

350, 383, I-Beam Connecting Rod Type

    Comes as a Kit

    Key Specs

    MFG. Part #9153030
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleInverted Dome
    Piston MaterialForged Aluminum

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Made to Order

    This custom item will ship when completed

    Quick and Easy Returns

    Return Policy

    Details

    Our lightweight forged rotating assembly engine rebuild kits include a 45-46 lb. Scat Superlight 4340 forged 2-pc rear main seal internal balance crankshaft, Scat 4340 forged I-beam connecting rods and Mahle pistons complete with wrist pins, locks and rings. Rod and main bearings included. Standard size journals.

    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.

     

    Kit includes:

    • Scat 4340 Lightweight Forged Steel Crankshaft
      • Standard size journals
      • Profiled aero-wing counterweights
      • Pendulum cut to reduce rotating mass
      • Straight shot and chamfered oil holes
      • Nitride hardened and shot peened
      • Lightening holes in all rod throws
      • Large radius on all journals
    • Scat Pro Comp 4340 I-Beam Rods
      • Stroker clearanced
      • ARP 7/16 " cap screw bolts
      • Bushed pin
      • Set of 8 rods
      • 5.7 " rod: 628 grams
      • Crank pin: 2.100 "
      • Wrist pin: .927 "
      • B.E. width: .940 "
    • Mahle PowerPak Forged Pistons
      • Lightweight slipper skirt design
      • Phosphate coated
      • Grafel anti-friction skirt coating
      • 4.000 " bore pistons available in standard, .030, .040, or .060 sizes
      • 4.125 " bore pistons available in standard, .030 or .040 sizes
      • Set of 8 pistons
      • Includes low drag rings, lightweight wrist pins and round wire locks
    • King HP Series Main and Rod Bearings
      • 0.015 " thick top layer for superior macro particle embedability and conformability
      • 40 Vickers hardness to resist overlay migration and extrusion
      • 450°F heat threshold for superior protection against friction and overheating
      • Mains are 3/4 grooved for improved oiling to the rod journals
      • Bi-metal aluminum silicon alloy featuring fine micro-bore finish

    Kit includes:

    • Scat 4340 Lightweight Forged Steel Crankshaft
      • Standard size journals
      • Profiled aero-wing counterweights
      • Pendulum cut to reduce rotating mass
      • Straight shot and chamfered oil holes
      • Nitride hardened and shot peened
      • Lightening holes in all rod throws
      • Large radius on all journals
    • Scat Pro Comp 4340 I-Beam Rods
      • Stroker clearanced
      • ARP 7/16 " cap screw bolts
      • Bushed pin
      • Set of 8 rods
      • 5.7 " rod: 628 grams
      • Crank pin: 2.100 "
      • Wrist pin: .927 "
      • B.E. width: .940 "
    • Mahle PowerPak Forged Pistons
      • Lightweight slipper skirt design
      • Phosphate coated
      • Grafel anti-friction skirt coating
      • 4.000 " bore pistons available in standard, .030, .040, or .060 sizes
      • 4.125 " bore pistons available in standard, .030 or .040 sizes
      • Set of 8 pistons
      • Includes low drag rings, lightweight wrist pins and round wire locks
    • King HP Series Main and Rod Bearings
      • 0.015 " thick top layer for superior macro particle embedability and conformability
      • 40 Vickers hardness to resist overlay migration and extrusion
      • 450°F heat threshold for superior protection against friction and overheating
      • Mains are 3/4 grooved for improved oiling to the rod journals
      • Bi-metal aluminum silicon alloy featuring fine micro-bore finish

    Specifications

    KEY SPECS
    MFG. Part #9153030
    BrandSpeedway Motors
    Connecting Rod TypeI-Beam
    Piston StyleInverted Dome
    Piston MaterialForged Aluminum
    GENERAL
    Connecting Rod Length5.700"
    Connecting Rod MaterialForged 4340 Steel
    Connecting Rod Bolt Diameter7/16"
    Crankshaft MaterialForged 4340 Steel
    Wrist Pin Diameter0.9270"
    Sold in QuantityKit