I had an ‘83 with a gutless 4-cylinder “Iron Duke” in it.  When the 4-speed crapped out, my mechanic found a used 5-speed to throw in.  It’s the only vehicle I’ve ever driven where you’d lose speed in 5th, even on the flats, so it never got used!

GM had an almost 8L engine making 115 hp and 128ft-lbs. 

As an owner of both over the years, the 4.2 is much smoother and more reliable. This being an ‘83 its only about 2 years off the worst year for power output. If you remove the emissions gear you can up this from 95ish HP to about 170HP. Put a proper modern carb on it and itll push around 200HP. These jeeps are light…

“...with less fewer cylinders...” signed, The Grammar Police.

And really begs the question why some people prefer these over the V8 (although the CJ-8 wasn’t offered with the V8.)

My old FJ40 had 4.2L (2F) and about 135hp. Also, it had to move a lot more weight than the Jeep does.

Must be Diesel, no? ;)

It’s a diesel, so a slightly different animal, but the GM Detroit Diesel engine went on sale in 1982 with a 6.2 liter displacement and 130 hp. And only 240 lb-ft out of a 6.2 liter diesel engine, somehow.

Man, being an ‘80s motor engineer in Detroit was wicked easy.

My 800cc sportbike makes more power, with less cylinders, while being more efficient.....

At 23hp/l it’s down there pretty far. I think the Caddy 500 V8 in it’s later form made 187hp from 8.2 liters so it beats this at 22hp/l !!

Crazy to think they got over twice the power out of the same engine platform, with less displacement, just 8 years later with the 4.0L HO.

You guys are missing the deal here. The Hot Wheels pictured is $14,500. Buy that and the guy will throw in the Jeep for free.

I appear to be in the significant minority, but I see this as a NP. If this had been modded by Bubba the wrench turner, it would be CP all day, but Hennessey is a guy that has had his name on the front page of several major magazines (sometimes even for making cars!)

You said it! Take the ugly angular Cadillac, then uglify it even more in this coupe version, and then let Hennessy add that crap to it!

Can you imagine how many idiots would want to drag race you at every stop light in this car?  

Pro: Hennessey upgrades, low miles, Texas car (no rust), appears to be very clean inside and out.

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“Sweet Sean Hannity!”

The director’s cut is always too long.