Took me a while to figure out this was posted in talk also
anyway
The Aluminum crank as well as other stuff sounds doubtful at best
379rwhp ... how is that possible with what we see
Maybe those values were corrected
Maybe the pull was done with no belt
You could go on & on
Maybe it is mostly
I'd be checking that car real good if I was you
As for the price ................
Some say aftermarket parts devalue a car
As for me ... I'd not value them any more than 50% ... if that much
More than the price of the parts effecting the cost of the car, what I would be leary of is the quality of work.
Things need to be like they need to be and if I do the work .........
I sleep much better at night
Good Luck with your decision
Grady