This is the BTR LS2 and newer timing chain dampener. This helps dampen chain whip and extend timing chain life. Will not fit LS1 and LS6 blocks without modification.

 

BTR SKU BTR88670
Length 3.750000
Width 7.875000
Height 7.750000
Weight 0.202000
Brand Brian Tooley Racing
Part Type Timing Chain Dampener
Engine Type Gen III/Gen IV LS
SKU BTR88670
Brand BTR