ozarkmountain
NAXJA Forum User
- Location
- Missouri
What EFI or Throttle body engines can I do a eazy swap for a 2.8 liter in '86 xj????? :dunno:
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2.8 liter swap?
- Thread starter ozarkmountain
- Start date
poorboy_616
NAXJA Forum User
- Location
- Vancouver, WA
4.3 or 3.1 would be an easy swap. The 3.1 V6 is available thru the GM dealers and is a complete crate motor. The only thing you would need to do is install an electric fuel pump, as the 3.1 does not use a mechanical fuel pump.
The 4.3 came as Carb'd or F.I. depending on the year. The early '80's vintage 4.3's were carb'd........
The 4.3 came as Carb'd or F.I. depending on the year. The early '80's vintage 4.3's were carb'd........
48MJ
NAXJA Forum User
- Location
- corvallis,oregon 97330
4.3 has the same bellhousing as a chevy v8 which is different than the 2.8 or3.1.
5-90
NAXJA Forum User
- Location
- Hammerspace
3.1 or 3.4 from a RWD/4WD (F-body or S-Series) platform would be easiest. Be sure to check FWD donors - GSR blocks (warranty replacement) had starter motor mounting pads on both sides, and if you see a mounting pad on the backside of the block (as mounted,) it's a GSR block and can also be used in RWD.
The 3.1 and 3.4 are (pretty much) externally identical to the 2.8L, and use the same bellhousing.
The 4.3, as mentioned, uses the Chevvy V8 pattern - which is different. You can still do the swap - you'll have to fab up mounts, and you should just grab the whole drivetrain (engine/transmission/transfer case) from the donor to save trouble. Since it uses the Chevvy V8 pattern, try to get a THM350, THM400, or THM700R4 (1990-up) 4WD setup. Avoid the early THM700R4s - they're barely fit for scrap metal... The 4.3L swap can probably be facilitated using the Advance Adapters SBChevvy drop-in mounting cradle.
The 3.1 and 3.4 are (pretty much) externally identical to the 2.8L, and use the same bellhousing.
The 4.3, as mentioned, uses the Chevvy V8 pattern - which is different. You can still do the swap - you'll have to fab up mounts, and you should just grab the whole drivetrain (engine/transmission/transfer case) from the donor to save trouble. Since it uses the Chevvy V8 pattern, try to get a THM350, THM400, or THM700R4 (1990-up) 4WD setup. Avoid the early THM700R4s - they're barely fit for scrap metal... The 4.3L swap can probably be facilitated using the Advance Adapters SBChevvy drop-in mounting cradle.
