rygenstormlocke

I saw a 10 second V6 3.8 stroked to 4.2 in a magazine not too long ago. Considering our engines have been around a bit in Explorers and Rangers, has anyone stroked the 4.0?

This might be another area we should look into.

scrming

I don't remember where... or all the technical reasons but I do remember reading somewhere that the 4.0 is not ideal for this.... but then again I could be making it up! LOL!

MSP

Here is a good read of our motor.. This is an important note in this paragraph..

http://www.babcox.com/editorial/ar/ar40123.htm

These pushrod engines are all conventional 60° Vs with cast iron blocks and heads. The 2.6L block that began with a 3.54˝ bore and a 2.63˝ stroke ended up with a 3.952˝ bore and a 3.307˝ stroke by the time it grew into the 4.0L. The block was just about maxed out at this point, so the cylinders ended up pretty close together, and the rods were crowding the pan rail, especially on the 97TM blocks.

We are dealing with the best our block can be.. We must make all the power we can from 4.0L.. Consider us to have a Big Block 2.6L.. LOL!! I know how it sounds, but it is what it is..

Right now, Scrming is @ 452Ft. Lbs or torque @ the Crank, with only the 100Shot.. The motor is known safe @ 150Shot, and I'm sure can handle a 200Shot, if you keep the RPM's down..

I really dont think we need a stroker.. We are in good shape..

hamidlmt

someone once told me, if you stroke your 4.0L, you'll go blind

Excepcion13

I just hope it is strong enough for Turbo... I think I want the Powerhouse system when it is up and running. The Supercharger sounds fun, too, and will probably be cheaper and easier to install, but i think my car would be a BEAST with a Turbo system.

rygenstormlocke

LOL. I was just reading this right before you put up this post. Google is a great tool!!! Ok, I can see how this motor evolved, 4.0L is fine by me. Besides, 452 tq is amazing, and I will be very

very

very happy with that.

Thanks for the info!

MSP

This is where you can see how some of our 3.8L counterpart brothers have alittle hesitation when trying to get them to go to the 2005 4.0 Mustangs..

You must understand, that the 3.8L engines were actually the upgrade from what our block stems from.. This is why a 3.8L can be stroked to 4.3L.. While our 4.0's are stroked from 2.6L design engines..

So yes we have good motors which create good power, but we must remember where it is we started.. That is from a 2.6L block..

Suffice it to say the 3.8L stroked to 4.3L is a darn good setup, and I completely understand why most 3.8 guys are hesitant..

It would appear to me that Ford should have just used the 3.8L block and kept the original practice and stroked it to 4.3L for the 2005 V6.. That may have created problems for the GT's 4.6L, and shortend the distance in N/A HP to only 25HP.. N/A 4.3L engines are about 275HP @ the crank.. Can you understand the complexity of Ford sticking to their original path?

Excepcion13

darn, 4.3L would have been NICE!!! But like you always sayMSP, I have have a lot of faith in our 4.0Ls. Especially considering what Powerhouse and Lidio are doing with them! :worship:

future9er24

just out of curiosity wasnt the 4.0 based on the 2.8 liter V6? like the one in my II?

i coulda sworn thats where it originally came from :scratch: and not a 2.6...

MSP

http://www.babcox.com/editorial/ar/ar40123.htm


These pushrod engines are all conventional 60° Vs with cast iron blocks and heads. The 2.6L block that began with a 3.54˝ bore and a 2.63˝ stroke ended up with a 3.952˝ bore and a 3.307˝ stroke by the time it grew into the 4.0L. The block was just about maxed out at this point, so the cylinders ended up pretty close together, and the rods were crowding the pan rail, especially on the 97TM blocks.

Some rebuilders have commented that making the 2.6L into a 4.0L was a lot like making the 265 Chevy into a 400; it’s a good analogy on a slightly different scale.

future9er24

wait, so doees this mean the 2.8 came from the 2.6? if so, then we're both right, because it says that it went from 2.6->2,8->2.9->4.0

thanks for the info, never even heard of trhe 2.6 before learn something everday right?

MSP

LOL!! We never stop learning.. Thats the best part about it.. We leave our minds open to the possibility that something, somehow, some way, everyday can be learned!

ManEHawke

Wheres the 3.0L V6 from. The '90 Ranger I used to have had a 2.9L and then they put in the 3.0L a few yrs later.

Fazm

the 3.8/4.2/4.3 are also pushrod motors, which are becoming a thing of the past.

The 4.0 i believe weighs less than the 3.8, but im not 100% sure bout that.

the 4.2 is the 3.8 with a different crank (v6 in f150).

as far as the n/a 4.3 producing 275hp, maybe after a bunch of bolton mods and stuff, because thats upping the power increase for the regular 4.2 by 50%. You can make the 4.0 275hp n/a just as easy im sure, with the OHC style motor.

MSP

This 4.3L Stroker is nuts!! Take a look!

http://www.extremev6racing.com/Forum...ead.php?t=1424

rygenstormlocke

That is beautiful! There is nothing left for him to do to that car.