B2600i Cylinder Head Torque Specifications

Above is the torque sequence for the B2600i cylinder head. Torque should be done in 20 lb/ft. steps until final torque. Torque bolts 1 through 10 first then torque cylinder head bolts "A" last. Torque numbers are below.

Bolts 1-10: 59-64 lb/ft.
"A" Bolts: 12-17 lb/ft.

Bolts should never be installed dry, always coat the bolt threads with engine oil or high pressure engine assembly lube before installing.

Untorque Sequence

Bolts should be untorqued in the sequence above in 2 or 3 steps or 1/8th turn on the first step, another 1/4 turn on the second step and then completly loosen.

Remove "A" Bolts first.
Untorque bolts 1-10 second

Additional Notes: Cylinder heads should always be checked for warpage when they are removed or before installing a new head. Less than .003" warpage is acceptable anything more than .003"-.005" warpage and the head should be straightened then shaved. All overhead cam design heads need to be striaghtened before shaving otherwise the cam towers will be out of alignment and you run a high risk of burning up the camshaft. When looking for a machine shop choose one that is racing oriented or a speed shop, these shops should have better equipment, more knowledge, and will care more for getting the job done right.