Jeep Strokers

Not sure if this is the right place for it but it is Performance related. I was wondering if anyone is familiar with these engines? I would like to know the power potential for these motors compared to a stroked 4.0 N/A of course.
Just from the little reseach I've done online there seems to be alot of high performance engine related parts offered. Not to mention the Standard Hemi head.

The distributor is located at the back of the block. Possibly eliminating the dreaded harmonics we suffer from.From what I've read guys are revving these things to around 6500rpm and some have said to 8000rpm.
The intake and exhust ports are different then our motors.
4.0 ( E I I E I E E I E I I E )
4.3 (265) ( E I E I E I E I E I E I )
Could the Hemi head be used on the 4.0s with a custom grind cam? They do offer an alloy head.
Howabout the gear drive units, could they be fitted to the 4.0 motors?
Anyone ever tossed these ideas around before?

The "E49" had tri Weber DCOE's, a "QW" camshaft and produced 302HP @ 5000rpm, 320ftlb torque @ 4100rpm (STOCK!), good street power but it would suck on the trail!
I don't see the Hemi Six sharing much with AMC/Jeep other than antifreeze?

In looking for information on the head I found this: http://www.allpar.com/corporate/bios/ha ... rview.html

It has some info on the I6, and some info on the other engines. Its an interesting read. There is a part 2 as well.

IH 392 wrote:The "E49" had tri Weber DCOE's, a "QW" camshaft and produced 302HP @ 5600rpm, 325ftlb torque @ 4100rpm (STOCK!), good street power but it would suck on the trail!

http://www.uniquecarsandparts.com.au/va ... ations.htm

Those HP numbers were SAE gross. The SAE net numbers would have been nearly 20% lower which means it realistically put out more like 245hp/263lbft at the flywheel, especially since the ~3000lb Valiant Charger R/T that had this engine would hit the 1/4 mile in ~14.1 @ 99. Very respectable numbers in those days for a 4.3L six and they put many V8's to shame.

that e49 charger held the fastest production car 1/4 mile time for over thirty years here in australia, it's an absolute legend. One major problem is that to really tweak them you go for the 6 pack weber carbies which cost more than a complete stroker engine itself (if you can find them!!). the engines sound great and go hard but honestly, on the trail in a 'modern' jeep i'd pick efi anyday over the carbs.

a lot of guys are getting those things into some scary 1/4 mile times naturally aspirated.. Hemi

RESEARCH HEMI 6: I've done lots of lookin' into this little gem of an engine via Google. It was/is really fast 6 with no parts to interchange with our lovable 4.0 engine. It has big following in New Zealand and Australia with lots of aluminum heads and other speed aftermarket available to this very day.
Took a bit of compression to get all those good numbers and gas you can't get at our pumps anymore. Check the exhaust/intake gaskets: they don't match ours. Look at where the dist is, different. It's all different but fascinating engineering, all started in America then expanded by Aussie engineering. It was to be a truck engine Americans said.

Don H Jr

PS: The only thing I saw that we could look into is COOLING the blocks we are stroking. On one of those hemi sites over there, it went into detail on a HOT SPOT in the block that showed up more as you hot rod the thing for HP and TQ. They reengineered that spot/shade tree style and got it to cool better under stress. Drilled hole and cut this that. I always wondered why the strokers got hot just from more stroke. My BMW engine is same as 3 others. Stroked on crank changes between them, no heat problems.

D