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Our ARP 12 point black oxide head bolts & washers sets are made from super strong 180,000 PSI bolts. That's a full 15% stronger than even grade 8 bolts. They work great for high horsepower and/or highly stressed applications with our new STEALTH aluminum cylinder heads, factory cast iron heads, Edelbrock Performer RPM aluminum heads, or any other heads that use stock length bolts. These bolts are fully heat treated prior to thread rolling and machining. A 12pt head design with reduced wrenching size and wide area flanged head eliminates the need for retorquing. Also includes ARP lube and hardened parallel ground washers. Includes enough bolts for two heads (one complete engine.)
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