Product Summary

14" Outside Diameter, 168 Tooth Count, 1.1 SFI Rating

  • Fits GM LS/LT applications crate engines flat fw
  • Center hole diameter 2.070
  • Internal balance
  • 168 tooth ring gear
  • Clutch bolt patterns: GM metric diaphragm 11 7/8" clutches with 12.625" bolt circle, 10mm – 1.5 thread
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Key Specs

MFG. Part #2558F
Tooth Count168
SFI Rating1.1
Material TypeAluminum
Engine BalanceInternal
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Need To Know

Quick and Easy Returns

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Ram Clutches 2558F Details

RAM billet aluminum flywheels deliver maximum performance, reduced rotating mass, and exceptionally quick engine response. Each aluminum flywheel is CNC machined from premium billet material, surface ground for absolute flatness, and dynamically balanced to precise tolerances. The lightweight aluminum construction significantly decreases rotational inertia, enabling faster rev matching, sharper throttle response, and improved acceleration in high performance or competition focused applications.

RAM aluminum flywheels feature a replaceable ¼" steel friction surface, a fully serviceable ring gear, and are built to meet all SFI safety specifications. Application specific designs support today’s most popular engine swap platforms—including LS, LT, Coyote, and Hemi—as well as Tremec transmission conversions. For drivers and builders seeking the fastest engine response and the advantages of reduced rotating mass, RAM billet aluminum flywheels deliver a proven edge on the street, strip, or track.

When your project demands the lightest, quickest revving solution without compromising durability, choose RAM billet aluminum flywheels for unmatched precision, responsiveness, and reliability. RAM billet aluminum flywheels are engineered and manufactured in the USA. When only the best will do- Choose RAM

  • Fits GM LS/LT applications crate engines flat fw
  • Center hole diameter 2.070
  • Internal balance
  • 168 tooth ring gear
  • Clutch bolt patterns: GM metric diaphragm 11 7/8" clutches with 12.625" bolt circle, 10mm – 1.5 thread
  • 0.815 thickness crank flange to friction surface
  • Meets SFI 1.1 specifications
  • Made in the USA

Application

GM LS 8 Bolt '0' Balance 168 Tooth

Warranty Information

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Speedway Motors cannot facilitate the return of defective Ram Automotive Co. products as they have requested to handle these directly with the consumer. For defective product support and Return Authorization, please contact Ram Automotive Co. at +1 (714)-630-2764.

Ram Clutches 2558F Specifications

KEY SPECS
MFG. Part #2558F
BrandRam Clutches
Tooth Count168
SFI Rating1.1
Material TypeAluminum
Engine BalanceInternal
GENERAL
Outside Diameter14"
Weight14 lbs.
Sold in QuantityEach
GTIN Code809009389655
Rear Main Seal Style1-piece
Flywheel MaterialBillet aluminum
Replaceable Friction SurfaceYes
Pressure Plate StyleDiaphragm

Questions & Answers

Fitment

  • GM LM4

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  • 4.8 Chevy LS V8

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  • 6.2 Chevy LS V8

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  • 4.8 Chevy LS V8

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  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM LM7

  • GM LQ4

  • 4.8 Chevy LS V8

  • GM L33

  • GM LQ4

  • GM L20

  • GM LC9

  • GM LMG

  • GM L33

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  • GM LM7

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  • 4.8 Chevy LS V8

  • GM L20

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  • GM LC9

  • GM LMG

  • GM LM7

  • GM L59

  • GM LM7

  • GM LQ4

  • GM LQ4

  • GM LQ4

  • 6.2 Chevy LS V8

  • GM LH8

  • GM LH8

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