The 230 cu. in. Tornado six was available in the
utility wagon '62-'64 and the J-100,J-200 and the
J-300 '63 and '64. The bore was 3 11/16 and the
stroke was 4 3/8. The CR was 8.5 to 1. It had an
overhead cam sitting on top of a hemi cross flow head. The cam was mechanical and used stamped
steel rocker arms that rode directly on the cam.
It used a 2300 Holley carb,similar to the 350 and
500 cfm carbs available now,but with the small
float bowl. The exhaust manifold was cast iron and
looked alot like a header.
I had one of these in a '64 wagon in the mid '70's. The engine made very good torque off
idle to about 2000 rpm,then fell on it's face. I
think it was the cam. I think with todays cam
technology it could have been a lot better engine.
The biggest problem with them was oil leaks. You
couldn't get them sealed up. There were major
problems with the front cover,valve cover and rear main seal. I had a friend that worked in a Jeep dealership at the time and he told me that
trying to seal one up was a waste of time. I don't
think it burned any oil,but I had to add a court
every 300 miles.The engine compressioned good and
would start at -20 degrees.
The wagon had a hi-lo transfer case,but I hardly
used the low side. It just had the torque to pull
it in the high side.
I'm sure this is more info than anyone cares about'just my 2 cents worth.
This was a Jeep engine. They also used 199 and
232 cu.in. AMC engines during that time.
Gordy
