4.0 ohv stroker

[swynx]

No this is not about making more power from the 4.0 if I wanted more power I would go with a 5.0, this is about reliability. Although power gains would be nice, but lifted geared and locked the 4.0 has plenty of power to go around. Any who...

The 4.0 is already a reliable engine. With a stronger kit how much more reliable would it be? I know it'll give tthe engine forged internals. And a bit more power paired with a new cam would see decent gains.

The 4.0 wasn't designed to turn 5k rpms for long periods. How would a stroker affect this. I myself never take it above 4 grand... its just not in the power band and I have more gears.

Seeing as I have a 300k mile 4.0 in the truck. A 90k mile 4.0 in the shed waiting to replace the current one. And a 60k mile 4.0 at the inlaws junk yard waiting for me. And I don't want things to get complicated with a 5.0 that I don't need. Maybe ill do a slow build up of a stroked 4.0

 

[adsm08]

I don't see the stroker kit doing much for reliability. The 4.0 is already a fairly sturdy engine that doesn't have issues with tearing itself apart, so I don't see forged internals being tons of help sine they would be beefing it up in an area that isn't a problem.

Stroker kits are usually for upping the torque and a longer stroke is going to make the engine turn slower. The biggest effect of stroker kit is usually to make the internals harder to get and more expensive to replace.

 

[Dune Runner]

If it's reliability you are after higher piston speeds are not going to help you. I wouldn't stroke it.

 

[swynx]

Any one know if you can buy forged internals without stroking it?

 

[bmerr98]

Is reliability really even an issue with the 4.0? I mean, you have 300,000 miles on the current motor...in my estimation that's a pretty good case of reliability you've got there. And, it's still running, right?

Of course you're free to do what you like, but it's like someone saying, "I have $47 million. Anyone know how I could spend a bunch of it so I could get $10 more?" Nothing wrong with ten more dollars, but with $47 million, what's the point? Just seems like you might do better for yourself putting your dollars into areas there would be a better rate of return.

 

[feellnfroggy]

go to supersixmotorsports.com and check out their 4.0 to 4.3 stroker kits. but its not a reliability upgrade, unless your gonna run boost. then you need the stronger internals.

 

[swynx]

go to supersixmotorsports.com and check out their 4.0 to 4.3 stroker kits. but its not a reliability upgrade, unless your gonna run boost. then you need the stronger internals.

Thought about putting a super charger on a 4.0. But for the cost of all that I could swap a 5.0 and have the same power on demand.

More than any thing I was just trying to put in terms how a stroker kit would help. 30 HP ain't much. And the 4.0 is a great engine.