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4.155" Bore 5/64"-3/16" Moly Standard Fit Piston Rings.

FMP E243K30
Limited Supply: only 7 remaining
Pricing: $50.84


Speed Pro Rings-4.155" Bore 5/64"-3/16" Moly Standard Fit Piston Rings

Speed Pro Piston rings dominate the racing industry with technically advanced design; dedicated research; and superior quality. Speed Pro rings deliver superior performance under grueling race conditions every weekend; on oval tracks; and drag strips world wide.

 Fits 377/400 

 Ring Configuration 5/64”; 3/16”

 Available in Std; 30; 40; 60 bore sizes


  • FMP E243K30
  • FMP E243K30
  • Speed Pro
  • Available
  • New


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