quote Originally posted by sanderson231: The point of your (Lou's) post was to promote modifying an Iron Duke rather than swapping to an engine with more potential.

I'm surprised/puzzled by this comment. I felt the intent of Lou's post was simply to share an interesting video about an Iron Duke with other PFF members. Has it motivated me to spend big bucks on my '84 duke? Not a chance!

[This message has been edited by Patrick (edited 10-03-2022).]

[This message has been edited by sanderson231 (edited 10-03-2022).]

[This message has been edited by lou_dias (edited 10-05-2022).]

quote Originally posted by sanderson231: ... Modifying an Iron Duke is just plain wrong.

I wouldn't say that. One of the guys in our club has modded his. (S10 head, moderately lumpy cam.) It's maybe 120-130 HP.
It's certainly not going to rip anyone's face off, but he has a lot of fun with it, and is quite satisfied. Only spent a few hundred dollars above the cost of a stock rebuild, which it was getting, anyway.
I've thought about (just for the hell of it) bolting an early, cast iron SD head onto an 87 bottom end (has a stronger crank, but will eliminate the unobtainium force balancer), along with a lumpy cam and a larger (maybe a 4.3 or 305?) TBI.
Would it run? Most likely. Would it run well? Probably, after some tweaking.
Would it blow up? Maybe. But it would be hellishly fun while it lasted. And would certainly surprise people, since it could be built to look nearly stock.
Is it financially foolish? Absolutely. But we already drive Fieros, so there is a precedent.

Jeez, y'all. Lighten up a bit. It's a hobby. We don't all have to do it the same way.

[This message has been edited by Raydar (edited 10-05-2022).]

quote Originally posted by Raydar: I wouldn't say that. One of the guys in our club has modded his. (S10 head, moderately lumpy cam.) It's maybe 120-130 HP. It's certainly not going to rip anyone's face off, but he has a lot of fun with it, and is quite satisfied. Only spent a few hundred dollars above the cost of a stock rebuild, which it was getting, anyway. I've thought about (just for the hell of it) bolting an early, cast iron SD head onto an 87 bottom end (has a stronger crank, but will eliminate the unobtainium force balancer), along with a lumpy cam and a larger (maybe a 4.3 or 305?) TBI. Would it run? Most likely. Would it run well? Probably, after some tweaking. Would it blow up? Maybe. But it would be hellishly fun while it lasted. And would certainly surprise people, since it could be built to look nearly stock. Is it financially foolish? Absolutely. But we already drive Fieros, so there is a precedent. Jeez, y'all. Lighten up a bit. It's a hobby. We don't all have to do it the same way.

I'm fairly certain the 4.3 and 5.0 and 5.7 TBI units are identical with the exception of the injectors. you'll probably need an EBL or other ECU to actually use it, I'd bet the stock duke ecu doesn't have two injector drivers. super duty parts are cool, but as already noted in this thread, the duke engine block isn't all that stout, the castings are pretty thin, which tends to mean they also aren't very rigid, which usually leads to cracks under stress. I'm kinda curious what a dyno of a 3.0l ecotec would look like, personally, I wouldn't particularly want to build either, but each has some merits, the built duke would still bolt in the stock mounts, the ecotec would almost certainly be lighter.

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"I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

I invited Lou Dias to trash me in my own thread, he refused. sorry. if he trashes your thread going after me. I tried.

No pushrod 60V6 Fiero has been faster according to the 1/4 mile list.