RE: TORQUE PLATES?
There is about 27 ways to look at the actual clamping force. The simplest is to use a number slightly less than the yeild strength of the fasenter. FI most standard applications use about 75% of the yeild strength. A stock TC cylinder stud is about 0.34 in diameter. That makes the area about 0.09 square inches. If you assume that the stud is grade 8 then the tensil strength is about 120,000 psi. OK F = 0.75 x 0.09 x 120,000 = 8171 lbs. You got 4 studs so the total clamping for is 32, 684 lbs.
Now check,, a typical good running motor can make about 1000 to 1500 peak preasure in the cylinder. A 95 ci TC would have 11.795 square inches of area. The pressure would be pushing at say somewhere between 12,000 lbs to 18,000 lbs.
Obviously you'd want the head hold down to be greater than the force produced under combustion so your head gaskets don't blow.