POWERFORCE STREET & SFI-APPROVED HIGH-PERFORMANCE DAMPERS These dampers are a must for engines that want to reach higher than stock RPMs. They are designed work with street or strip applications and feature all of these added benefits: *Elastomer/Bonded to prevent outer ring slippage. *Removable counterweights *Precision machined to tighter than stock tolerances. *Black gloss finish with white timing marks for perfect accuracy.

Description: B/B 400 Chevy-8" - Internal.