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4.0 sohc question


rdill

Active Member
Joined
Oct 27, 2007
Messages
31
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i have a 4.0 sohc motor that only has 26,000 miles and my 89 bII with a 4.0 needs a motor. the first problem i ran into is the oil pan hits the crossmember so i was going to change the oil pan from the ohv motor but the sohc has a balancer shaft i need to know if it can be removed?
 
Umm, it's a good bet that Ford didn't put a balancer shaft in the engine just for sh*ts and giggles. That's severalmore moving parts to machine, assemble and warranty.

Modifying the engine to make it fit is a bad idea. Modify something else. Perhaps engine mounts?
 
Not all 4.0SOHC have the balance shaft.

All 4.0SOHC engines do have the two piece oil pan the upper half of
which is actually a main stud girdle.

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The balance shaft is for the 4X4s only. I put one without a balance shaft in a 4x4 Explorer and didn't notice anything. Who knows why it's there, but there must have been some trend in the 4x4 drivetrains that caused them to use it.

I attached a few more 4.0 things. The pdfs were posted a long time ago by another member. He used to identify himself when I posted them--hopefully he's still around.

And this is my superimposition of the Honda 3.5 V-tec on the 4.0 curves. I made that when I was betting Dustin it would out tow some damn thing or another. In this case, you can see where the intake manifold opens up the plenum and then the valve timing shifts and the 4.0s are diving for the deck. My premis before is that the 3.5 Vtek will lag through first gear by a little until 2,000rpm on the pushrod motor and by up 20ft# until 3,500# on the SOHC--then it will never lag again--it will be seriously laying a whopping on those 4.0s because it's 2nd gear recovery point is 3,500rpm and it keeps getting higher. This is the type of engine that will end up in the next Ford compact truck and everyone is going to cry. There's no reason for it though. it will do the job easily and have an extra 50hp when you want to have fun with it.

attachment.php
 

Attachments

1/2" spacers under the engine mounts and tranny mount will give you the clearance you need to fit the SOHC into that frame - I had one in an 88 Ranger GT for a while and currently have one in my 93 Splash - it'll fit fine with no interference.


Bird
 
did you have any hood clearance issuesand do you like it with the 4.0 sohc?
 
did you have any hood clearance issuesand do you like it with the 4.0 sohc?

With a Lightning supercharger on top of it, I do have some 'clearance' issues - never had a chance to find out with the stock intake setup.


Bird
 

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