ARP 135-2503 Square Drive Balancer Bolt Kit for CHEVROLET Big Block ymm_32 Specifications Socket Size(s) 8mm 12pt

Specifications Socket Size(s) 8mm 12pt UHL (Qty: ) ˝ Thread Size 1/4-20 washers included

the Akrapovič sound engineers have coaxed a deep

Designed and manufactured using innovative technologies

cost effective tuning tools that allow users to accurately monitor the Air/Fuel Ratio (AFR) of their engine

drivers can easily switch between the quiet mode and a sportier sound

ARP 135-2503 Square Drive Balancer Bolt Kit for CHEVROLET Big Block ymm_32 Specifications Socket Size(s) 8mm 12ptSpecifications Socket Size(s) 1 1 8 hex, 1 2 square drive internal Material: 8740 Chrome Moly Finish: Black Quantity: Single Kit Instructions Fits Following Engines: 454 CID Chevy Big Block V8.