Head Bolt Set for Cummins 12 valve. Set Includes: 26 Bolts and Hardened Washers. Just follow the factory torque specifications. More than normal stock bolts but won't cost you all the $$ ARP's will. Of course this is no guarantee but many pullers are using these in their pulling trucks (we have them in our own 12 valve puller) #12VALVEHEADBOLTS