I6 to V8 swap ?s - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-01-2000, 01:35 AM
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I6 to V8 swap ?s

I was just told of a great deal on a 304, at, 300 combo. What all will I need to buy to swap this stuff in place of my 258 3spd 20 combo. I can modify some stuff have cutter & welder & not afraid to use them on stuff like skids & such. I will probably just use some sort of floor shifter. Please help me with specifics. like motor mounts trans mounts rad & such.
Thanks
John

88 XJ ltd some mods. 92 XJ quite a few mods. 98 TJ dad's & mine joint toy stock more or less . & now a beater 79 CJ7 soon to be a non beater I hope
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post #2 of (permalink) Old 09-01-2000, 08:08 AM
 
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Re: I6 to V8 swap ?s

get the downshift linkage for the tranny if its a Torque Flight type ( it probably is from what youve said)

youll need one motor mount, and I think ive heard you can use he same radiator, it might be enough since its only a 304.

the skidplate will require a little modification, and youll need driveshafts of course.

why not just swap the engine in front of your 3 speed?



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post #3 of (permalink) Old 09-01-2000, 09:05 AM
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Re: I6 to V8 swap ?s

I would not keep the 3 spd because I don't like wheeling sticks. It is fun for a short while though. Which motor mount needs changed? Do the motor mount perches need to be changed?
Thanks
John

88 XJ ltd some mods. 92 XJ quite a few mods. 98 TJ dad's & mine joint toy stock more or less . & now a beater 79 CJ7 soon to be a non beater I hope
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post #4 of (permalink) Old 09-01-2000, 09:44 AM
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Re: I6 to V8 swap ?s

The passenger side motor mount perch is the one that needs changing-

Comrade Drayson


post #5 of (permalink) Old 09-01-2000, 10:07 AM
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Re: I6 to V8 swap ?s

You can also cut a slot in the pass perch and it will work thats what I did with my 360. I used the same radiator. It was a stock 3 row. Works ok fan shroud a must for me though

Can you fix it?
I got a welder and a grinder. Heck yeah I can fix it.[img]/wwwthreads_images/icons/cool.gif[/img]
post #6 of (permalink) Old 09-02-2000, 12:57 AM
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Re: I6 to V8 swap ?s

Every thing is still availlable from your Jeep dealer. You need a right side frame mount, and both CJ engine mounts. It is a bolt in with these parts. I am sure you could modify the 6 cyl frame mount, but you do need the engine side mounts. They should run about $40 a piece new. The rubber piece can be picked up at any parts store for about $12 each, and they probably have them in stock. You will have to order the metal parts from your dealer, unlees you are lucky.

Thanks, Ray

post #7 of (permalink) Old 09-02-2000, 05:27 PM
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Re: I6 to V8 swap ?s

See if you can get the skidplate from the donor CJ - it will save you some time fabricating a new one (unless you need the practice[img]/wwwthreads_images/icons/smile.gif[/img]). The Dana 300 skidplate probably will not line up with the old skidplate mounting holes, so you will have to come up with a different way to mount it. Some people weld angle iron to the outside of the frame rails and drill new holes in the skidplate - I drilled new holes up through the frame and used loong bolts from the top (which is a lot easier if you have a body lift or the body off the frame). Good luck.

Bob N
"Think your new truck is better, let's go wheeling and see"
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