Product Summary

350 mains Main Journal Style, 3.480" Engine Stroke

  • Fatigue-resistant with near forged steel endurance
  • Shot peened and magnafluxed
  • T-5 hypereutectic construction
  • 5140 heat treated steel
  • 80-60-06 cast steel construction

Comes as a Kit

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Key Specs

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

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Return Policy

Speedway Motors 9151036 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

 

Speedway Motors 9151036 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

Questions & Answers

2 Questions • 2 Answers

Is this kit available with STD bore pistons? Also, which rings do you recommend? Obviously, I'd want to use the same weight rings used in the balancing process.

by MikeBr

• 11 years ago

1 answer

Balancing How much is the optional internal balancing for this assembly?

by kadpro

• 12 years ago

1 answer

2 of 2 questions shown

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  • Vortec L31 Small Block Chevy

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  • Vortec L31 Small Block Chevy

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  • Vortec L31 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Vortec L31 Small Block Chevy

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