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When using ARP case bolts with an IAG case half set should I follow ARP’s torque specs?
Last Updated: 06/29/2018
IAG installs ARP CASE BOLTS with 30W engine oil using OEM SUBARU torque specs and procedures. Other torque specs and lubricants may lead to case distortion damage. If you purchased an IAG case half set or short block that was originally manufactured with OEM case bolts, IAG recommends line honing the case when using ARP Case Bolts to remove any distortion created by the hardware.

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