Product Summary

350 mains Main Journal Style, 3.480" Engine Stroke

  • For 350 Chevy small block V8
  • Kit includes new 1 pc rear main seal crank, rods and pistons
  • Forged 5140 Steel connecting rod
  • Cast steel crankshaft
  • Flat Top w/ 2 valve reliefs piston style made from hypereutectic aluminum

Comes as a Kit

See more details

Key Specs

MFG. Part #9151037
BrandSpeedway Motors
Connecting Rod TypeI-Beam
Piston StyleFlat Top w/ 2 valve reliefs
Piston MaterialHypereutectic Aluminum
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 9151037 Details

Speedway introduces forged rotating assembly engine rebuild kits, with an optional balance job. Includes new 1-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings.

New one piece rear main cast steel crank. Standard size journals. Hyperuetectic piston set and Speedway Super Stock rods. ARP rod bolts.

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, 2 valve relief

C/R 58cc=10.7, 64cc=10.4, 76cc=9.1
Piston/Pin Weight:614 g
Rod Length: 5.7"     

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
    • Press pin
    • 5.7 " length
    • 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
    • Press pin
    • 5.7 " length
    • 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 9151037 Specifications

KEY SPECS
MFG. Part #9151037
BrandSpeedway Motors
Connecting Rod TypeI-Beam
Piston StyleFlat Top w/ 2 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 Weight512 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

5 Questions • 5 Answers

Can you get this with standard bore pistons?

by Brent

• a year ago

1 answer

Are the rods press fit or floating

by Chris

• 3 years ago

1 answer

How many rpms can this assembly hold? Looking to use this in a street stock on a high banked 1/3 mile track.

by Bluebyu54

• 8 years ago

1 answer

How will you balance this assembly internally or externally?

by Dickie

• 9 years ago

1 answer

Size/ type of rod bolts?

by Dickie

• 9 years ago

1 answer

5 of 5 questions shown

Fitment

  • Gen 1 L05 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Gen 2 LT1 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L31 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • 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

Customer Impersonation Script