Everyone keeps talking about stroking the 4.0 v6. That starts 1000 little side debates, and constant mocking of the person who posted it. Then I thought, one of the stumbling points of the old 4.0 v6's is that, or at least this is what i have been told, that it doesn't like to build rpms, or rev as it where. That's great for a truck but for those who want a fast truck, that's not always a good thing. So that gots my mind a turnin.

There is an old hot rodder trick, I bet most of you are familure with. You take a 350 chevy sb (or any v8, I just know this one) and you de-stroke it down to a 305 (or what ever displacement you would like). The 350 chevy has a larger bore then the 305. SO by destrokeing it you where able to built the same power as a 305, but you could rack the rpms a lot faster.
I believe they also did this the big blocks. But I am not sure. I have heard of taking a 427 down to a 350 or a 302, but never seen one.

I wounder if you could do somthing similar with the 4.0 OHV. Take the 4.0 block, and use a 2.9 crank and rods (or something like that). That would be interesting to see.

thoughts?

 

i think it works for big displacement, however when your dealing with such small displacement i think it would be worse to suffer the loss of tq with whatever rpms you gain

 

im gonna have to agree with ES894x4... u would probably lose more torque than u would gain in horsepower. it is most definitely a cool idea tho.
i think the bottom line is, for our trucks, wanna go fast? supercharge your 4.0 or put in a V8. i always thought it would be decent to put the 5.0 mustang engine in my ranger.

 

I'd rather just buy a Mustang

 

Or a GTO like me.

 

Well i have a 78 trans-am.

I was just spit wadin. Everyone says stroke it stroke it, I like to be hard headed.

 

Just throw a 5.7 V8 hemi in there.

Hemi Ranger.

 

If i win the lottery. That would truely be hardcore.

 

hemi=crap. IMO

 

If swapping out motors why not just a 3.5Duratec(Turaus-Edge-Flex). It has more HP already than the 4.0SOCH and you can probably winde it right out with no problems. I don't know much about the 3.5D motor but I know the 2.3D motor does a decent job in the Focus and it pulls 6K RPM easily.

 

bang for buck, a 5.0l swap is probably your best bet. It's been done countless times, and parts are plentiful. But if you can find a donor vehicle and get a killer deal then go with whatever floats your boat.

 

How 'bout boring and destrking the 4.0 so it's still 4.0 or maybe larger, say with a 2.9 crank and some 351W slugs, so you have the same (or more) displacement, with higher rpm capabilities, and more power? just bench racing here, but I've seen this done with a 351 bored and destroked to 358ci, and spinning 7k with no probs. road race motor though.

 

why would you want something of dodge in there? it would just blow up or something to that effect like their awesome trannys

 

i bet a dollar it would smoke when you got it runnin

 

I was looking at the 3.5 or the 3.0 duratecs, they are amazing motors, the 3.0 in my girlfriends taurus pulls like a raped rihno. The stumbling block there is Idk what transmission they use, and how to wire it into my truck.

As for the 5.0 I also thought about that, I have been weighing my options on doing that swap, but like i said i like being hard headed and not going with the flow. Lol.