BTR BTRCRA3900F158 Forged Crankshaft, 3.900" Stroke, GM 58X
BTR BTRCRA3900F158 Forged Crankshaft, 3.900" Stroke, GM 58X
BTR

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#36984073

BTR BTRCRA3900F158 Forged Crankshaft, 3.900" Stroke, GM 58X

  • GM 58X Reluctor Wheel
  • 2.100 rod journal diameter
  • .125" radius on both the connecting rod journals and main journals for increased strength
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Stroke:

3.900"

3.622"4.000"

Reluctor Type:

GM 58X

GM 24XNo Reluctor

$939.99

/each

Factory Shipped


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Product Summary

3.900" Stroke, Forged 4340 Steel Crankshaft Material

  • GM 58X Reluctor Wheel
  • 2.100 rod journal diameter
  • .125" radius on both the connecting rod journals and main journals for increased strength
  • Gen III/Gen IV LS
  • Chamfered oil holes for improved oiling
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Key Specs

MFG. Part #BTRCRA3900F158
BrandBTR
Stroke3.900"
Crankshaft MaterialForged 4340 Steel
Rod Journal Diameter2.100"
See more specs

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BTR BTRCRA3900F158 Details

BTR FORGED CRANKSHAFT FOR LS ENGINES

BTR's Premium, 4340 Forged Crankshafts are available for the weekend Cars & Coffee crowd or to the Die-hard Grudge racers. Each crank is Core-Hardened using Nitride for improved strength, bearing life and size tolerances held to +/-.0002". BTR has either a 3.622” or 4.000" stroke along with 3 different Reluctor wheel options, including standard factory 24 & 58 tooth wheels, or an upgraded 24 tooth BILLET wheel. A standard wet sump snout and 6-bolt rear flange will allow you to bolt on your factory balancers & flywheels/flexplates or the many aftermarket pieces offered.

  • GM 58X Reluctor Wheel
  • 2.100 rod journal diameter
  • .125" radius on both the connecting rod journals and main journals for increased strength
  • Gen III/Gen IV LS
  • Chamfered oil holes for improved oiling
  • Leading edge chamfer and radius on counterweights

BTR BTRCRA3900F158 Specifications

KEY SPECS
MFG. Part #BTRCRA3900F158
BrandBTR
Stroke3.900"
Crankshaft MaterialForged 4340 Steel
Rod Journal Diameter2.100"

Questions & Answers

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Fitment

  • GM LS6

  • GM LS2

  • GM LSA

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L94

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L94

  • GM LM7

  • GM LQ9

  • 6.2 Chevy LS V8

  • GM L9H

  • GM L76

  • GM LC9

  • GM LMG

  • GM LY5

  • GM LY5

  • GM LM7

  • GM LM7

  • GM LQ4

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS1

  • GM LS6

  • GM LS2

  • GM LS3

  • GM LS4

  • GM LS4

  • GM LM7

  • GM L20

  • GM LM7

  • GM LY2

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LQ9

  • GM LQ4

  • GM L98

  • GM LM7

  • GM LQ4

  • GM L98

  • GM LQ9

  • GM L98

  • GM LQ4

  • GM L98

  • GM LQ4

  • GM LQ4

  • GM L98

  • GM L98

  • GM LQ4

  • GM LQ4

  • GM L98

  • GM LZ1

  • GM LS3

  • GM L77

  • GM LMG

  • GM LY5

  • GM LM7

  • GM LC9

  • GM LMG

  • GM LY5

  • GM LC9

  • GM LMG

  • GM LMG

  • GM LY5

  • GM LQ4

  • GM L96

  • GM LMG

  • GM LY5

  • GM LM7

  • GM LMG

  • GM LY5

  • 6.2 Chevy LS V8

  • GM L9H

  • GM LC9

  • GM LMG

  • GM LZ1

  • GM L9H

  • GM LC9

  • GM LMG

  • GM LZ1

  • GM LC9

  • GM LMG

  • GM LZ1

  • GM LMG

  • GM LY5

  • GM LH6

  • GM LS2

  • GM LM7

  • GM LQ4

  • GM L94

  • GM LM7

  • GM LQ4

  • GM L94

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM L94

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM L94

  • GM LQ4

  • GM L20

  • GM L9H

  • GM LC9

  • GM LMG

  • GM LZ1

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM L96

  • GM L96

  • GM LQ4

  • GM L20

  • GM LM7

  • GM LY2

  • GM L20

  • GM L94

  • GM LM7

  • GM LY2

  • GM LZ1

  • GM L94

  • GM LC9

  • GM LMG

  • GM LZ1

  • GM LM7

  • GM LM7

  • GM LQ4

  • GM L96

  • GM LQ4

  • GM L96

  • GM LQ4

  • 6.2 Chevy LS V8

  • GM LH8

  • GM LH9

  • GM LH8

  • GM LH9

  • GM LS1

  • GM LS3

  • GM LS1

  • GM LS2

Customer Impersonation Script