[Gmecm] TBI Swap - Iron Duke Tech IV

[Aphelion79]

I know, I can bolt up the brand new Chevy 350 that is sitting in my 
Chevy in the back yard... I mean litterally bolt on... just new motor 
mounts is all I'd need.. But more power = things breaking... also I 
don't want a gas guzzler... The 4 cyl has plenty of torque in low range, 
and even more when I convert to a 4:1 low on my Dana 300...

You're correct...  Jeep's own 2.5L was the 150 CID, which was started in 
'84.

Ne14RoxCJ wrote:

>Found a lot if application info here:
>http://en.wikipedia.org/wiki/GM_Iron_Duke_engine
>
>Jeep started using their own 2.5l I-4 in '84. Those are the ones that had
>the plastic VC's similar to the AMC I-6. The I-6 was the one notorious for
>leaking VC's. The GM Iron Duke (Hurricane) was used from '80-83 in the CJ's.
>I admit, I did have to replace VC gasket once in the 1 year I drove my jeep
>with the Iron Duke, but that was shabby mechanic work after the engine was
>rebuilt (but then, I have NEVER had a sheet-metal VC on a GM engine that
>didn't leak until the centerbolts came along.) Google shows lots of info on
>this little boat anchor and even after Buick put EFI on it and re-badged it
>as the Tech 4.
>
>Beau
>P.S. The Iron Duke has the same bolt pattern as a Small-Block and a 10.5"
>clutch from an older Camaro or Nova fits perfect. A 305 V8 was a very easy
>swap with 3 times the power.
>
>-----Original Message-----
>From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On Behalf
>Of Dustin Lof
>Sent: Tuesday, February 14, 2006 10:04 PM
>To: gmecm at diy-efi.org
>Subject: Re: [Gmecm] TBI Swap - Iron Duke Tech IV
>
>Does your donor car use a distributor with a cap,
>rotor and a single coil mounted externally, or does it
>have an aluminum plate with a module and 2 coils
>bolted to it?
>
>Do I recall some of those jeeps using a GM
>distributor?
>
>I know they use a lot of GM parts, But I know the
>heads are not an exact interchange.  The 2.5l jeeps
>had a plastic valve cover that was always
>broke\leaking, it had to be replaced with the same
>piece of junk that came off, a steel cover off of a
>2.5 GM car, truck or whatever, the bolt holes dont
>line up.  I just makes me wonder about the rest
>
>
>
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