Could i put an old straight six in a 2002 ranger truck (has v6 auto trans right now)?

i dont like the fact that i cant work on my own vehicle i want an old style engine and transmission, can that be retrofitted into a 2002 ford ranger? would this cause me to not be able to pass emissions? do they’ve higher standards for newer cars or is it a universal emissions limit regardless of how old the vehicle is?

---

Answer:
you can do it, and the 240-300 are the same engines, it's just you won't be able to smog it. the law states you can't put a older engine in a newer car or truck.

---

Answer:
The swap would be difficult and not gain you much. If you’ve the 4.0L SOHC engine you'll be giving up 50 HP and gaining about 20-30 torques. The fabrication involved will give you nightmares for years to come. You’ll spend more than the truck is work worth. Furthermore it will definitely not pass emissions testing. Your transmission will not work with the 300. A C6 or E4OD will be needed, but neither will swap into a Ranger without significant cutting. If you have 4WD then things ever even more complicated. In short this is a bad idea. It would be much, much, cheaper and much, much easier to just purchase an older truck.

---

Answer:
a smaller one like the 240, perhaps, but the 300, probably not. the I6 is much longer than the V-6 is and thus needs a longer space to fit.

another thing, remember that the newer automobiles do have different standards for emissions and b/c the VIN would be from a new car, you'd have to meet new automobile standards.

---

Answer:
You wouldn't be able to meet the emissions standards with those engines. You have too many sensors and an ECU that keeps your truck complient with the law. Anything else that you put in must meet the standards for that year truck.

If you want an old engine, buy an old truck.

---

Answer:
Not enough room for the long engine and too many sensors..

---

Answer:
Probably too long.