4.0 compatability

[turbolx]

hey new to this site and i was wondering if i could get some help
i have a 99 ranger with a 4.0 ohv motor and its shot i was wondering if a 4.0 ohv out of a 97 explorer will fit right in or will i have problems i was told that i could only use a 99 or 00 motor is that true ? thanks!!!

 

[mwood1985]

if your engine DOES have a EGR on it you can use a 1998-2000 ranger or explorer 4.0.
if it DONT you are limited to a 99-2000 ranger or explorer. some thing is different on the 98 non egr engines

 

[AllanD]

The tall block assembly (less the sensors, fuel rail, etc)
are all the same,

I thought All 1995-up 4.0's have EGR?

The only thing you need to worry about with an earlier tall block
is the flywheel/flex plate.

Up to mid 1997 they used six flywheel bolts mid 1997 on they used eight.

So if you get the flywheel/flexplate with the engine it's anon issue.

Just swap all your crap onto the "new" engine

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[F150hybred]

"SOME" 94 model Explorer's did come with an EGR system. I'm not too sue about Ranger's though. But I can vouch for the first one... I own one.