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Old September 14th, 2013, 05:03 PM   #1
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Default A few jeep ??? Motor swap

My cusion has a 85 2 door cherokee with a carb. v6 blown up.
He has a 93 v6 motor out of a s10 fuel injected..
Question 1: will the s10 motor bolt up to his jeep trans??
Question 2: will the intakes swap out so he can keep it carbrated?
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Old September 14th, 2013, 05:17 PM   #2
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Don't think Cherokee's ever had a V-6 in it, and if it did, we would need to know what brand of V-6 was swapped into it before we could answer either of those questions...
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Old September 14th, 2013, 06:06 PM   #3
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No idea if they'll bolt up but they are both 2.8's correct?
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Old September 14th, 2013, 08:21 PM   #4
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Factory would be a 2.8 GM V6. The 93 engine they have should be a 4.3 which shares nothing with the 2.8. Two completely different engines. They didn't offer anything rear drive with the 2.8 since 89-90ish. The 4.3 is a 90' engine and the 2.8 is a 60' engine. I'm not sure if they changed the bellhousing pattern for the Jeep or not. My 86 came with a 2.8, but it, the trans and t-case were scrapped because the engine was literally broken and I had a small block ready to go.

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Old September 14th, 2013, 09:13 PM   #5
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I am an idiot...


Please continue...
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Old September 14th, 2013, 09:43 PM   #6
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Quote:
Originally Posted by dj13104 View Post
My cusion has a 85 2 door cherokee with a carb. v6 blown up.
He has a 93 v6 motor out of a s10 fuel injected..
Question 1: will the s10 motor bolt up to his jeep trans??
Question 2: will the intakes swap out so he can keep it carbrated?
Slim to none chance and no.

As jbsjunk said, completely different engines assuming the jeep still has its factory engine. Best bet is to find another Cherokee v6 (good luck) or fix his or better yet find some sucker on here to buy it and get a newer Cherokee with the 4.0L.
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Old September 14th, 2013, 09:46 PM   #7
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If the price is right, and it's not rusted out, I may be interested in it. Another swap project.
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Old September 14th, 2013, 11:44 PM   #8
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Thanks for all the info and jbsjunk i will see if he wants to sell.
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Old September 15th, 2013, 10:22 AM   #9
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I believe any 60 deg v6 will bolt right up. 3.8 supercharged?

Well the buick v6 isn't a 60deg but it has the hop bellhousing. Swap in a 3.4
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Old September 15th, 2013, 10:47 AM   #10
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I believe any 60 deg v6 will bolt right up. 3.8 supercharged?

Well the buick v6 isn't a 60deg but it has the hop bellhousing. Swap in a 3.4
Im pretty sure the 3.8 does share the same bolt pattern as a 2.8

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Old September 15th, 2013, 11:35 AM   #11
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The 4.3 has the small block Chevy bell housing pattern
Your 2.8 has the 60* bell housing which is the same as the 2.5 4 cylinder jeep engines

I don't remember what the 3.8 has...one of the two lol
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Old September 15th, 2013, 12:54 PM   #12
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Yes, all 60 degree V6 engines will physically bolt to the trans. However the front wheel drive version blocks from cars have the motor mount bosses in different places. They can be used, but fabbing is required. The easiest bolt in replacement for the 2.8 is a 3.1 or 3.4 Camaro V6. The intake can be swapped over to keep it carburated, however there is no fuel pump provision on the EFI motors so you'll have to use an electric fuel pump. You'll also need to keep/use all the accesories and distributor and exhaust manifolds from the 2.8
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Old September 15th, 2013, 12:59 PM   #13
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As for the 3.8 idea, rear wheel drive (early) engines have the 90 degree BOP pattern. All front wheel drive versions (ie supercharged) are still a 90 degree V6 but use the GM metric 60 degree pattern and will bolt up. Motor mounts will be custom, and the supercharger snout may hit the firewall.

You didn't metion if this is an auto or stick. If it is a stick a simple bell swap will get you whatever pattern you need, Auto is going to be a non-OD automatic anyways, so a 4.3 swap would also be time to swap in a 700R4 and S-10 231. It is a very simple swap and quite worth it IMO.
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Old September 15th, 2013, 06:07 PM   #14
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Quote:
Originally Posted by Toyfish View Post
Im pretty sure the 3.8 does share the same bolt pattern as a 2.8

Sent from my DROID X2 using Tapatalk 2
yeah, i posted it had the BOP pattern. its just not a 60* v6
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Old September 17th, 2013, 01:13 PM   #15
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New info jeep had motor swap done to a v6. Both are 90s v6 engines. It there any differce inbetween fuel injection and carb. motors? Can i swap intakes to put fuel injected motor to carbrated?
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Old September 18th, 2013, 08:03 AM   #16
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Quote:
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New info jeep had motor swap done to a v6. Both are 90s v6 engines. It there any differce inbetween fuel injection and carb. motors? Can i swap intakes to put fuel injected motor to carbrated?
No fuel pump boss on efi motors. The intakes will swap. Is the swapped in motor a 4.3 or an old G-body 3.8 Chevy? Or something different like an old 3.8 buick? The way to look is the valve covers. Are they bolted in the middle or on the outside like an old small block chevy? 3.8 chevy has four outside bolts per cover and is rectangular like a SBC, 4.3 has three bolts in the middle and is also rectangular. 3.8 buick (old 231) also has four outside bolts but is more oval at the ends.

The 3.8 chevy and 4.3 are fairly interchangeable. The 3.8 buick is not.

A pic of this motor would be of great help.

Last edited by kkodet; September 18th, 2013 at 08:11 AM.
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