Step 1: 22 ft-lb (30 Nm)
Step 2: 30 ft-lb (41 Nm)
Step 3: 44 ft-lb (60 Nm)
Final Tighten: 90 degrees
It's important to follow these specifications and tighten the head bolts in the proper sequence to ensure proper sealing and prevent damage to the engine. Always refer to the vehicle's service manual for specific instructions and details related to your particular model and engine.