Edelbrock Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads SPECIAL-ORDER Bolt-on a BORLA(r) and give

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Edelbrock Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads SPECIAL-ORDER Bolt-on a BORLA(r) and giveManufacturer Part # : 8581 Market Description The Edelbrock #8581 bolt kit contain a complete set of the highest quality head bolts and hardened washers available. Cold formed to ensure molecular integrity and heat treated prior to thread rolling and machining. Reduced diameter bolt heads eliminate the need for valve train removal to facilitate cylinder head re torqueing. Hardened and parallel ground washers are included. Rated at 170,000 p. s. i.