55 lbs is the blue print spec for a 427 wedge motor, SOHC motor is 58-62 lbs with
oil on the threads. A 7/16 bolt grade 8 spec is 50-65 lbs for rod bolts. You need your machinist to get a micrometer to measure rod bolt stretch. Blueprint rod clearance is still.0025"-.0030" in all the old books. This is for all FE motors I have found specs for. Plastic gauge is going to tell you the clearance anyway. These numbers don't say what crank is being used. Hope this helps. Rick Lake Ps You may want to try call Rich Kirk 19183724537. He owns alot of old FE stuff and may have a different answer.