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RHS Head Install Head Torquing Down

Phil Watson of JPC Racing torques down the heads. The top torque sequence is: 25 ft-lb, 45 ft-lb, and finally 70 ft-lb. The bottom torque sequence is 25 ft-lb, 45 ft-lb, and then 65 ft-lb. These numbers are done because the head is aluminum. Be sure to start with the middle bolts and work your way out. Start with 25 ft-lb and work your way around the head. Then go to 45 ft-lb and then the final torque-down sequence. This will apply even pressure as it gets tighter and tighter.
1990 Ford Mustang Head Swap - Back In Business

 Phil Watson of JPC Racing torques down the heads. The top torque sequence is: 25 ft-lb, 45 ft-lb, and finally 70 ft-lb. The bottom torque sequence is 25 ft-lb, 45 ft-lb, and then 65 ft-lb. These numbers are done because the head is aluminum. Be sure to start with the middle bolts and work your way out. Start with 25 ft-lb and work your way around the head. Then go to 45 ft-lb and then the final torque-down sequence. This will apply even pressure as it gets tighter and tighter.  View Related Article

 

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