Yes, here's how:
1) Sell the Xterra drivetrain
2) Buy a Chevy K20 with the proceeds
3) Swap in the Chevy components using readiliy available adapters and parts
FYI: Seeger Weiss (law firm) is investigating claims for a class action lawsuit for defective VQ40 engines in the 2005-2010 Pathfinder, Xterra, and Frontier.
The VQ40 engine contains a primary timing chain and two secondary timing chains. The timing chains can degrade prematurely causing their protective surfaces to wear. This defect can cause engine failure, even while the vehicle is in operation, resulting in serious injury or even death.