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I have a 1983 CJ7 Jeep Laredo which originally had a 258 6cyl AMC motor which you could source from an old Rambler Hornet and a couple of other Ramblers that had that motor. I installed a AMC 360 V8 motor from a 1977 Rambler Matador which bolted straight on to the Torqueflite 904 auto gearbox which I installed a 2 stage kit and highstall torque converter. Being in Australia I used Holden engine mounts and Holden WB radiator and fan shroud. She's one quick Jeep now.
Should be the 258 cid I6
On the windshield frame, right in front of the driver, behind the dash pad. The motor mounts to the inside wall of the windshield frame and drives the linkage that is inside the frame.
yes. jeep stanardized bell housing bolt pattern in 71 i believe. just motor mounts and exhaust and radiator to worry about.
It's not important, just tighten it.
My manual says 20-25 ftlbs...
12 mpg with a 1981 CJ7, 258 engine. -------------------------- 1982 CJ7 Golden Eagle with a 3-Speed Ford 302-V8 engine and 33in Goodyear (Hummer Radials) in perfect mechanical condition - I get about 15 in the city, but I'm careful about how I drive. (hardly ever run the AC)
The stepper motor controls idle speed. A bad motor allows the engine to rev at idle. It often sounds as if the timing is off but not so- It's the stepper motor malfunctioning. I own a stock (original owner) '84 CJ7 6 4.01 straight 6 with a bad stepper motor. There is no replacement part for this stock item - Jeep discontinued it recently. There's no after-market part for this year ('84) unfortunately. You'll need to check out salvage yards or perhaps something custom made advertised elsewhere. I hope this helps somehow.
1-5-3-6-2-4 Looking from the cooling fan side.
If you haven't seen it already, this may help. http://www.offroaders.com/info/tech-corner/project-cj7/project-cj7-heater.htm
It is not easy but do-able. It is easiest and cheapest if you can find a doner vehicle that will furnish all parts required.
With proper gear ratios and maintenance you should get around 17 MPG with the 258 cid and about 12 MPG with a 304 cid.