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Protomotive 7/16″ head stud kit with stainless Steel time-sert intall kit. Install Torque to 75-80 ft-lbs. We have run these to 1569whp/1200wtq. Ready for 1000whp plus builds. Fits 996 and 997.1 Turbo. Easy clearance of heads / liner carriers over 12mm or 1/2″. Fits with factory or Protomotive’s Big Bore head and base gaskets. The stainless steel time-serts are for extra strength in the case, giving extra thread depth and bite.
Time-sert install kits available. Shown in main picture (not included)
need help with the machine work or Engine Building?
Weight | 12 lbs |
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Dimensions | 10 × 6 × 5 in |
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