With a properly set up VVEL System there should be no reliability issues.
As for swapping the heads, your issues will lie with Engine Control, as the 370Z ECU will not run the HR heads, and the HR ECU will not communicate with the 370Z CANbus. The "Cheaper" option will be the HR heads on the VHR bottom end.
What are your power goals? Looking to have an engine built or looking to base this all on a stock engine platform? Do you need the body controls on the car to act as if they are in a stock car or is this a dedicated track car?
|