torque specs for 170 head

[Anonymous]

whats the torque specs for the 170 head to block and the rocker arms and shaft to the head? Thanks Nate

 

[Hot 6t Falcon]

Nate,

The head torque specs are the same for all 144/170/200/250


From page 17 of Falcon SIX Cylinder Performance Handbook.

Tighten head bolts in three steps by creating a circle pattern from the center of ther head out to the ends.

Step one 40-45 lbs.
Step two 50-55 lbs.
Step three 60-65 lbs.

The rocker arm shaft is 30-35 lbs. Start in the center and alternate front to back bolts. one all of the rockers are in contact with there pushrods SLOWLY AND EVENLY tighten each bolt doing them all EVENLY (or you stand a good chance of bending the rocker shaft.) untill the stanchions are snug to the block. Now use the torque wrench.

Good Luck

 

[barroom hero]

[ intake log ]
13 8 4 1 5 9 12
14 7 3 2 6 10 11

that would be the bolt pattern if you can use your imagination 8)

 

[addo]

Don't forget the relax time. I'm not talking about sipping cocktails by the pool, but the time interval needed for each torquing to settle. Ideally at least 20 minutes, preferably overnight for the last stage. Use an underhand pull on the torque wench, and don't jerk it - this can lead to a false triggering of the threshold you've set.

Rocker shaft? I think 30-35? Valve cover is like 5, if that much.

Regards, Adam.

 

[simon]

Just to throw in even more numbers, my `65 shop manual says 70-75 lbs on the last step, with oiled threads.

30-35 lbs for the rocker shaft supports is correct.