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OPGI Price: $84.99
Part Type: (P) High Performance, designed to improve performance CI = Cubic inches
Sold As: SET
2018 Riviera Catalog Page: 185
The “High-Performance” series of cylinder head bolts from ARP are made from 180,000 psi steel, which makes them 15% stronger than grade 8 bolts. They also feature a special wide area flange underneath the bolt head so you don’t have to re-torque the heads and they provide maximum clamping power. The complete head bolt set comes with hardened parallel-ground steel washers for steel and aluminum heads.