Hi, I'm a new member so forgive me if this question has been asked before. I have '98 F-150 with the (problem prone) 4.2 V6 engine. I am wondering if you can swap out the1998 F150 Automatic 4.2 V6 for a I-300 I-6 engine and how much work that would be?

 

Hello 1BadTruck and welcome to the forums.

Unfortunately, your idea falls into the category of "anything can be done if you throw enough money at it".

The 300 was offered until 96 when they completely redesigned the F-150. If you wanted to put one in your truck, you'd have to swap the transmission with it as well.

All of the computerized components would need to be reworked since there's not a wiring harness that would directly plug into the engine or transmission. (At least that I know of).

The mounts for the engine and transmission would most likely be custom.


The last, and final, issue is that the 300 very well simply may not fit. One of the reasons the 300 was discontinued was because if they only offered a V8 and V6, they could significantly decrease the length of the engine bay. Probably require firewall cutting, moving the radiator, etc.

Etc. etc.

But... as always... If you do, take pics!