back in a box, now what

[tim marks]

im picking up an 84 grand marquis off of a friend in the next two weeks. im wondering a few things about the older style box cars....

what are the major drivetrain differences between the 84 and say the 86 and up. i know a few of the obvious things but not much more than that.


im looking to toy with the motor a little. ive owned quite a few boxes, but none older than 86 so im pretty familiar with the newer boxes and the modifications that i can do. ive done the HO swap twice as well as gears and brakes and all that stuff. im just not familiar with the older lopo motors and cfi setup. is it pretty straight forward to swap to a carb setup? if swapping to carb, are there any ignition mods needed?

also, ive owned enough automatic vics. this one will be a t5 in a few short months. ive read up on the swaps that have been documented, it actually seems pretty easy and straight forward. the only thing i havent seen is anyone going with a hydraulic setup...has it been tried and is just not worth it or has no one attempted it? i went with the hydraulic on my ranchero instead of the cable setup, and i favor it greatly.

thanks in advance for any input, im excited to be the owner of another box vic again.


tim

[79lincolnlover]

Do you still have the '96 gs?

[tim marks]

yea, i havfe it at the shop now. im procrastinating putting the duals back on it. i made cutout in the bumper for the tips to come out, now i just have to finish the exhaust up and we should be golden.

[Lincolnmania]

an efi ho or explorer 302 swap would be easier tim........it's been done twice here by gmners......no need to drop the fuel tank and change from eec4 to duraspark......for the price of a new intake and carb, you can get a used 302 ho.

[tim marks]

with the HO swap im guessing i would need to get a wiring harness off a donor car? i like the sound of HO swap, brings back memories.

i gotta get up to skippyville scott, havent seen you in a while.

[tim marks]

can u run e7s on 84 lopo motors with a better cam

[Lincolnmania]

yea need donor efi harness......should be able to get that at ez pull or wait for us to part out vals car
i'm only like 35 min from leesport mang......run 183 till you get to 901 and run 901 to 209 south

[tim marks]

i know, ill have to run up some saturday after work or some sunday. know of any good explorer motors?

[Pesty351]

also, ive owned enough automatic vics. this one will be a t5 in a few short months. ive read up on the swaps that have been documented, it actually seems pretty easy and straight forward. the only thing i havent seen is anyone going with a hydraulic setup...has it been tried and is just not worth it or has no one attempted it? i went with the hydraulic on my ranchero instead of the cable setup, and i favor it greatly.
tim

I used a cable setup with mine and haven't had any trouble yet. "knock on wood"

[tim marks]

im not worried about having trouble with it breaking or anything, its the pedal. it is so much smoother and easier with the hydraulic setup. plus, if its never been done, why not be the first.

[zoomie]

i know, ill have to run up some saturday after work or some sunday. know of any good explorer motors?

i know of at least two ..well two that i knew of one was at semans autoparts and the other was at rt20 autoparts in irving ny both 250 for a exploder motor

[85crownHPP]

yes convert the CFI to SEFI and go HO!!!