If you mean "end play", yes.
I believe the clearance should be within .002 and .007 thousands of an inch. and also the end play clearance, should be between .002 and .007. you should check the bearing caps with plastic gauge, and the end play wiyh a feeler gauge.
3.48"
It is 3.48 inches, the same as the Chevy 350 crankshaft.
NO.
the crankshaft position sensor is located at the underneath side of the engine right at the bottom of the timing chain cover / front of oil pan
One or two dots near the outside. They should line up with the dots on the crankshaft.
A 327 and a 350 share the same bore diameter (4.00"), but the stroke of the crankshaft is different. If you put 327 pistons on a 350 crankshaft it would put the piston 1/4" out of the hole at TDC.
Different crankshaft.
Buy a new crankshaft.
55-65 lbs.
No, they are not interchangeable.
What do you need to know about it.