Originally Posted by ON-UJAH
Metric probably - 3/8 inch I'd imagine (which is about 9.5mm so your 10mm is a bit loose).
Torque to the instructions using the special lubricant - not to Fords recommendations. If in doubt call Kent or ARP in america.
Metric is mm, Imperial is inches
the heads of the ARP bolts arent a hex like normal bolts, theyre similar to exhaust manifold studs (star shaped) only they have more points, so my star sockets i use for the manifold studs dont fit the ARP bolts.
and the instructions dont tell you what to torque the bolt to just how to stretch it! and the 27lbft it tells you to use, cant be correct for securing ya con rods, cos its fook all torque!! 27lbft is only about 36Nm!!