940 to 740 swap

stu_850t5 · Mar 18th, 2011, 04:32

hi,

hope someone can help, question will the 2.3 redblock turbo engine go straight into a 740? also can i use the 940 rear axle with the LSD and bolt on to a 740?

thanks stu

ian2000t · Mar 18th, 2011, 08:01

What year are the 2 cars? And what injection does each have?

This is something I wanted to do, but my 740 had the old K Jet injection so no go without a full injection and loom swap!

Skylaneguy · Mar 18th, 2011, 18:29

Quote:

Originally Posted by stu_850t5

hi,

hope someone can help, question will the 2.3 redblock turbo engine go straight into a 740? also can i use the 940 rear axle with the LSD and bolt on to a 740?

thanks stu

Yes, the engine is a direct fit. You'll have to use the fuel injection components from the 740, and maybe the distributor. You need to tell us what years of cars.

940s don't have an LSD, but and Eaton Locker. They bolt in, but there can be trouble with the speedometer tone ring count. Once again, what years, ABS or not?

Chesh740R · Mar 19th, 2011, 10:59

If you are taking a 2.3 Turbo redblock from a 940 turbo and bolting it into a 740 Turbo then it will physically bolt in straight away.

The only thing you have to be carefull off is your 740 Turbo car an early one running the motronic ECU or a late 740 Turbo that is running LH2.4

The easiest way to check between the two is see if you have an Air Inlet temperature sensor in the intercooler hose to intake manifold. If you have an AIT you have motronic, if not you have LH2.4

If you have that then you need to ensure you bolt the motronic flywheel and its 2 flywheel sensors to your donor redblock from the 940. Also use the motronic inlet manifold with its injectors as well as they and the Throttle position switch are different.

You will also have to swap over all the coolant sensors in the cylinder heads.

Mar 18th, 2011, 04:32	#1
stu_850t5 Master Member Last Online: Feb 11th, 2022 13:15 Join Date: Oct 2008 Location: Braintree Essex	940 to 740 swap hi, hope someone can help, question will the 2.3 redblock turbo engine go straight into a 740? also can i use the 940 rear axle with the LSD and bolt on to a 740? thanks stu

Mar 18th, 2011, 08:01	#2
ian2000t Premier Member Last Online: Oct 21st, 2023 20:25 Join Date: Dec 2008 Location: Halesowen	What year are the 2 cars? And what injection does each have? This is something I wanted to do, but my 740 had the old K Jet injection so no go without a full injection and loom swap! __________________ 1990 Volvo 760 GLE D24TIC ZF22 - 16psi, more fuel, Monark 293 nozzles, 40mm lower, Bilstein TCs, 24/19 ARBs, full Polybushed front, H&R spacers, 17" Titans. Running Veg oil/petrol mix. Past: 1988 Volvo 740 B230E M46, 1991 Volvo 940 B230FB M47

Mar 19th, 2011, 10:59	#4
Chesh740R Turbobricker Last Online: May 10th, 2024 21:36 Join Date: Dec 2002 Location: Wellingborough	If you are taking a 2.3 Turbo redblock from a 940 turbo and bolting it into a 740 Turbo then it will physically bolt in straight away. The only thing you have to be carefull off is your 740 Turbo car an early one running the motronic ECU or a late 740 Turbo that is running LH2.4 The easiest way to check between the two is see if you have an Air Inlet temperature sensor in the intercooler hose to intake manifold. If you have an AIT you have motronic, if not you have LH2.4 If you have that then you need to ensure you bolt the motronic flywheel and its 2 flywheel sensors to your donor redblock from the 940. Also use the motronic inlet manifold with its injectors as well as they and the Throttle position switch are different. You will also have to swap over all the coolant sensors in the cylinder heads.

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