Specifications Socket Size(s) 5/8 12pt, 9/16 hex, 5mm Allen, 5/32 Allen
Suits:Â
Ford Falcon 4.0L Inline 6-cylinder BA/BF/BG
Barra
ARP Pro Series cylinder main studs are cold-forged to ensure molecular integrity. They're heat-treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.