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Unread 09-09-2011, 02:28 PM   #1
truckshop21
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motor swap in 81 CJ5 can't decide what motor!!!!!!!!!!!!!!!!!HELP!!!!!!!!!!!

so for the last month I've been trying to figure out my plan for my cj5 i now know i want to run 36's with a 4" suspension lift and 1"body lift and shackles if there needed but now on to the hard part i have the tinny gm 151 4cyl and the garbage SR4 tranny and the dana 300 TC. i was planning on switching to automatic and swapping a 350 V8 but now the more i read everyone says a automatic in a cj5 with a lift is not going to work.. i am planning on using this jeep to go mudding and then drive on the road maybe to the beach or just for a cruise every so often so need help. i was also looking into maybe a 4.3l v6 and converting it to carbonated but don't know if that will work either so now I'm stuck and need some help..... what motor would be a good choice for me and who has done a swap that would work for me.... thanks in advanced

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Unread 09-09-2011, 02:38 PM   #2
lucdog
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SBC 350, or AMC 360, T-176, and your Dana 300.

BILL
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Unread 09-09-2011, 02:43 PM   #3
kickingprop
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Quote:
Originally Posted by lucdog View Post
SBC 350, or AMC 360, T-176, and your Dana 300.

BILL
That would be the most bang for your buck and also the easiest.
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Unread 09-09-2011, 02:46 PM   #4
truckshop21
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so automatic is pretty much out of the picture? and if i did a amc360 would i still need different motor mounts?
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Unread 09-09-2011, 03:07 PM   #5
Cutlass327
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Yes, and Yes... autos have a longer length, making drive shaft length an issue...
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Unread 09-09-2011, 03:12 PM   #6
kickingprop
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yeah I dont think the 4cyl motor mounts would work... but you can keep the bellhousing and use it with the T176 I believe by re-tapping.

People have done an Automatic before in CJ5's but I wouldnt want to drive one at any kind of speed...
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1985 CJ7 Project
Phase One : 5.3L Vortec/4L60E, Moser axles for AMC20, Twin Stick'd Dana300 - Completed
Phase Two: Bedliner, Rollcage, Seats, BESRK Rear Bumper w/ tire swing, Soft Top, and a few other goodies - Mostly Complete
Phase Three: Waggy 44 front, Scout D44 Rear, 4.56's, ARB's (F/R) SOA with YJ Springs, 35x12.50x15 BFG MT - Not Even Close to beginning

Also a mostly rust-free 1970 Scout 800A That I'll get to start working on someday...

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Unread 09-09-2011, 03:49 PM   #7
truckshop21
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no the bellhousing is a gm bellhousing i don't think it will work.



Quote:
Originally Posted by kickingprop View Post
yeah I dont think the 4cyl motor mounts would work... but you can keep the bellhousing and use it with the T176 I believe by re-tapping.

People have done an Automatic before in CJ5's but I wouldnt want to drive one at any kind of speed...
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Unread 09-09-2011, 03:49 PM   #8
truckshop21
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so whats a decent price to buy a abc 360 and a t176 and why a 360 and not a 304?
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Unread 09-09-2011, 03:54 PM   #9
Cutlass327
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Pricing, no clue. But if you are going to go thru the effort to go to a V8, might as well skip that step of the small V8 and go larger
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Unread 09-09-2011, 04:23 PM   #10
truckshop21
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good point!!!

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Pricing, no clue. But if you are going to go thru the effort to go to a V8, might as well skip that step of the small V8 and go larger
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Unread 09-09-2011, 05:10 PM   #11
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I'd look for a 304 or 360. Either one is plenty in a 5. The 360 is more common around here, though. I guess my point is if I found a 304 that seemed solid and a fair price, I'd jump on it.

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Unread 09-09-2011, 10:03 PM   #12
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a SBC will cost less to install than a AMC but both are great choices.
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Unread 09-09-2011, 10:05 PM   #13
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i just dropped in an amc 360 with an NP 435, d300. i got more mounts and driveshafts from a stock cj with a t5 in it and that was all it took. its a very very simple straight forward swap and it yields GREAT results

and as for where to get one? craigslist my friend. i happen to have a spare t176 but im all the way in va.
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Unread 09-10-2011, 01:16 AM   #14
truckshop21
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would you ship it? how much? does it need to be rebuilt?


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i just dropped in an amc 360 with an NP 435, d300. i got more mounts and driveshafts from a stock cj with a t5 in it and that was all it took. its a very very simple straight forward swap and it yields GREAT results

and as for where to get one? craigslist my friend. i happen to have a spare t176 but im all the way in va.
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Unread 09-10-2011, 10:38 AM   #15
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bump
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