I have a 97 Dakota 2wd with a 5.9 and 5-speed. I understand that the 4.0 is not a 2jz supra 6 cyl. but I'm wanting to swap from 5.2/5.9 to a 4.6 stroker or 4.0 with boost for a couple of reason's 1 is gas mileage and 2 these motors are almost indestructible. I had one with 300k miles and could still roast the tires at will and beat up 4.6 mustang automatics. A tko600 I have already got but I'm torn between a n/a 5.7 hemi base which will displace 426/440ci. And I know this is a better platform but the gas mileage. Any suggestions?