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Isuzu Trooper engine swap from 2.6L to a 3.8 #1027779 05/07/11 02:12 AM
Joined: Apr 2011
Posts: 2
T
tonkatom2 Offline OP
Need a Spot
Hello I am in debate on what to do. I have a Trooper with the 2.6 and it died do I rebuild it or can i do a swap over to the 3.8 but need to know if it will bolt up to my tranny or do I need to use another type tranny and transfer case ..If i could get some help it would be great. Thanks alot Tom

Re: Isuzu Trooper engine swap from 2.6L to a 3.8 [Re: tonkatom2] #1027780 05/07/11 03:16 AM
Joined: Nov 2003
Posts: 5,690
87Montero Offline
Trail Leader
***
OK, so this is an Idea.. however I haven't figured out how to get the engine in without smacking the front drive axle housing.

Do you have an automatic or a manual. Here's what you need to know. Basically the 4 cyl MUA5 will not bolt to the 60 or 90 degree chevy engine right away, you need the bell housing/front cover from a 1989-1994 MUA5 from a GM 2.8 or 3.1l engine depending what vehicle it came in. What you can do is pull the whole casing/bellhousing off the front of the transmission. The crankshaft uses a brass bushing which will need to be machined to allow a slightly larger input shaft that the 2.6 engine has compared to the Izuzu V6. That'll get you mated to a 60 degree V6 engine. From there you can get a Fiero engine adapter plate that's machined for Chevy350 engines into the Fieros. With that you can bolt up any 90 degree engine you think you can fit into the front of your truck. I do not suggest a V8 engine, but you could probbably do really well with a 4.3 or maybe if you want to go as far as a 3.8l engine of some sourt. I know in other countries people go for a 3.8l supercharged engine, but I don't know what to source that from here..... a bonnyville or a GTP?

Hope that helps, I'm just rambing though. <img src="/forums/images/graemlins/zombie.gif" alt="" />

Welcome to 4x4wire. <img src="/forums/images/graemlins/cheers.gif" alt="" />


1999 Mitsu Montero - Crappy Weather
1992 Isuzu Pickup - Zombie Apocalypse
2008 Saturn Sky Redline - Nice Weather
Re: Isuzu Trooper engine swap from 2.6L to a 3.8 [Re: 87Montero] #1027781 05/09/11 02:59 AM
Joined: Apr 2011
Posts: 2
T
tonkatom2 Offline OP
Need a Spot
Well thanks for the info .. My Isuzu is A manual.. so i was thinking about that supercharged found a running one at a good price but was not sure if it would bolt up to my tranny . thanks alot

Re: Isuzu Trooper engine swap from 2.6L to a 3.8 [Re: tonkatom2] #1027782 05/09/11 04:05 AM
Joined: Aug 2000
Posts: 4,868
Jim_Paget Offline
Roll Me Over
The only 3.8 swap with which I am familiar was done in conjunction with a SAS, which addressed the front axle clearance.

I am not sure but I believe that the 3.8 will bolt up to a v6 tranny. Do a search on a SAS and engine swap done by Houlster.


Jim Paget
88 YJ with a few changes

www.rrr4x4.com
Re: Isuzu Trooper engine swap from 2.6L to a 3.8 [Re: Jim_Paget] #1027783 05/12/11 02:09 AM
Joined: Dec 1999
Posts: 1,035
Ed Mc Offline
Body Damage is Cool
The Camaro/Firebird and FWD "3800" models all have a 60-deg bellhousing bolt pattern with starter on the correct side to mate up with an Isuzu MUA 2.8 (or 3.1) V6 5-speed or an automatic with the correct bell housing.

If your clearance issues between oil pan and front diff are during installation, just unbolt the axle-to-frame bolts (2 per side) on the front axle/diff assy and let it drop down for more clearance.

If it's more of an in-place problem (i.e. just won't fit), you'd need to modify the oil pan for proper clearance. Probably gonna have to do something with the oil pan in any case.

Older RWD 3.8's had, if I recall, a B-O-P (Buick-Olds-Pontiac) bell housing pattern and that'd be a different story.

HTH.......ed


'90 Troop 3.4 LS
'89 Troop RS (Has Valve Issues, needs Counseling)
HI, I'm Ed and I'm a Trooper-holic!
Keep On Troopin'......
Re: Isuzu Trooper engine swap from 2.6L to a 3.8 [Re: Jim_Paget] #1027784 05/15/11 02:27 AM
Joined: Nov 2010
Posts: 70
L
LeeForget Offline
Getting the Wheeling Fever
Quote
The only 3.8 swap with which I am familiar was done in conjunction with a SAS, which addressed the front axle clearance.

I am not sure but I believe that the 3.8 will bolt up to a v6 tranny. Do a search on a SAS and engine swap done by Houlster.


The 3.8/3.8sc in the bonniville/GTP/monte carlo/impala's all have the same bellhousing as the 60 degree v6 3.4/3.1/2.8/2.6


~88 Raider 2.6L 5 speed
~35"x14.5"r15
~SOA(Spring Over Axle)
~TT(Torsion Twist)
~SBL(Sloped body lift)







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