Reinstalling head - what head bolt torque for Greddy install?
 

Hey guys,

just wondering what the proper head bolt torque is on a fresh head?
It will be greddy'd soon - i would think the same torque values would be used?

Thanks

yes, same values. the torque is calculated according to the material used in the bolt, so its enough to actually stretch it just slightly, so the tension locks it in place without a need for lock washers and such. the head gasket is also taken into consideration to make sure it seals.

since (I'm assuming) you're using and OEM head gasket and OEM head bolts, use the stock torque specs.

56-60 ft/lb

https://www.miataturbo.net/braineack...d_sequence.gif

do it in 3-4 steps.

so hand tight, then 20 lbs, 40 lbs, 60lbs. follow the order.