Okay, this may sound weird but:
Can a V8 to V6 swap be done in a 1998 XLT?
I have the Triton 5.4 (barely 67,000 miles) but with gas prices and my need to NOT need a V8 I was wondering if it would be advisable to trade someone with a low milage V6...Thanks in advance. And ALL statemenat are welcome. UF

 

I own a 4.2, and drive a 5.4 at work ... there's not a lot of difference in mileage between the two. It takes fuel to move a heavy truck, it doesn't matter all that much how many cylinders you're running the fuel through.

 

Yeah for the hassle the reduced value and the cost of doing such a swap one could buy quite a bit of gas. Keep the 5.4 you have running at its peak performance and all and its not that much worse then the 4.2. If you really want the few mile per gallon (maybe 2) sell your truck and find one with a 4.2 already in it.

 

Trans and wiring harness is gonna be different. Sure anything could be done, but thats not a feasable swap.

Somebody for sure would want a lowmileage 5.4.

Adrianspeeder

 

I got a friend with a 4.2, and he doesnt do much better than me, if any at all. Keep the V8, and if you are really hurting for something gas friendly, go buy a beater honda civic or something for your commuting fun.


-Matt

 

majority of time the 4.2 equipped trucks get the same or worse mileage than the 4.6 and 5.4 equipped trucks

 

If you want gas mileage in a F-150, you might as well do a Cummins 4BT swap.

 

i've always told myself that if my 5.4L ever dies she's getting a 5.9L Cummins

 

The V8's get about 1.5 mpg less than a V6. For the hassle, thats a silly reason to swap.

 

I agree with glc and bansheeman6100, Ive thought about that for a long time! back to your question, My work has 5- 4.6L and 3- 5.4L and they all get almost exactly the same mileage, the only real difference is when I drive a 4.6 it feels like driving a 5,000lb truck with a Focus 2.0 engine!! (very guttless)
if you want better milage buy the focus!!!...

 

A guy I worked with bought a 4.2 with a stick to try and get the best mpgs he could and siad it got worse then the one with the 5.4 since it had to work harder to move the truck.

 

Mine isn't that bad.

 

ill trade ya mines getting 15 average

 

id LOVE to get 15 average. my highway is 14 right now. hoping that goes up after i finish efan, new transmission and tuner. also thinking about changing O2 sensors and spark plugs

 

MAYBE I'll do what you did to yours to get better...


SERIOUSLY--> thanks ya'll for the insight... Looks like I will just keep it in and do some mods to get better mileage.