That engine has a ROLLER CAM AND ROLLER LIFTERS
The most common cause of lifters knocking is low oil pressure.
NO. The 86 is not a roller block.
NO, Not even close.
yes like 350 engine
There are 6 bolts in the bell housing that hold it to the rear of the engine.
Yes it does.
Not hard with the proper tools and equipment. A shop repair manual would be helpful.
Yes it will fit right in there with no problems.
typically no it should be hydraulic lifters unless someone has changed the cam and lifters in the engine.
hydraulic-type lifters do not have tappet clearance. follow manufacturer's recommendation for lifter preload.
yes it does from the factory.
It has adjustable rockers.