Head bolts 12mm x 1.5
The cylinder head tightening sequence is a five step process. The bolts are tightened from the center outwards.1. Tighten to 22 ft/lb
2. Tighten to 80 ft/lb
3. Loosen bolts completely to 0 ft/lbs
4. Tighten bolts to 22 ft/lbs
5. Turn bolts 85-90 degrees clockwise with an angle wrench, or tighten to 76-83 ft/lbs when torque wrench is used.
ARP headstuds
Stock torque is 76-83 ft/lbs.
Main bolts
34-38 ft/lbs from the center outwards. Done in two or three steps.Rod bolts
Apply engine oil to connecting rods and nuts before assemblyTwo steps
1. 10-12 ft/lbs
2. Angle wrench 60-65 degrees.
RB26 Bolt Tightening Torque. Head bolt tightening torque. Main bolt / stud tightening torque. Rod bolt tightening torque.
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