My parents currently own a 1989 740 wagon with the 16valve engine, my dad would like to put the turbo engine in the 740 so we soon will be pulling the 16valve engine. I currently have a 1980 242gt with a b21f engine. Can the 16valve engine be put in very easily into my 242(i assume that i have to change the injection system)? if so will the 16v give me much better acceleration? i would really like my 242gt to be a little quicker, if anyone has any input or ideas it would be much apreciated.

PS. the 16v runs like a dream and only has around 200,000 kms on it.

Alright so it seems that putting in the 16v engine is probably going to be to much work for what i would get out of it. I have a few connections at the volvo dealership and the guy says he could get me a b21ft for relatively cheap(including all turbo electronics etc that are needed) would this job be any easier??

It would be somewhat easier. The B21FT uses the same style fuel injection as your B21F, but various components got placed in different areas. Nothing's going to be a real easy swap... but a turbo swap of some sort (B21FT, B23FT, B230FT) would probably be your best bet.

Another thing I'd worry about with the 16V motor is clearance. I believe that a 16V turbo is a tough to impossible fit in a 240, I don't know how much easier it would be to fit a non turbo 16V motor.

The distributor shouldn't be a big problem as you could just bang out the firewall if you were so inclined.

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alex

'89 765T, 173,0xx mi

Just out of curiosity, would it be an easier swap the 16v head onto a b23f? The B23 block is similar to the 16v block isn't it?
Oliver
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1984 245......needs more giddyup

its a doable thng to do. the big issue is the pistons either need to be machined or changed to allow for valve clearance.
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1990 240 Sdn 277K,tach,strut brace,turbo sway 1990 240 Wgn M47II 157K,tach,strut brace,poly bushings,IPD sways

I currently have a complete 1990 740 that is wrecked with a 16 valve engine and have researched this idea around some...also thinking about adding it to my 76 244 with a b21f...as bad as I want to do something with this head ...or complete motor, I'm waitng for another plan...

It seems that there is not going to be an easy/ cheap way to pull this off. It comes down to distributor location, head mount wont fit a 200 series and a block mount wont fit with the 16 valve head. then the whole injection set up sounds like it would be a nightmare, not to mention there seems to be some indesision as to weather or not the pistons would need machineing to clear the valves... I have also been told that the master cylinder and the steering shaft may be an issue.

I hate to be a downer but this is what I have learned... If you figure it out post a description because It's killing me to have this 16 valve just sitting...today I looked at an older ford ranger pick up and caught myself going hhmmmmm........
Bret
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rust free in west Texas

There isn't any "very easy" about any of this work.
It would be a neat job if you could pull it off. The trouble would be getting the 16V to work in the 1980's chassis and which fuel injection to use. The distributor drive would be another issue as mentioned. Not sure whether you could do this using the 240 style distributor.

Suffice it to say that this is a big job due to the complexity of getting 2 different generations of fuel injection systems to work. Or more likely, making later model (LH2.2) injection work in an old K-Jet chassis. There are a lot of issues here.

Even getting the turbo engine to work in the 16V chassis will require some extra parts beside the engine- it will require a 1985-89 740 or 760Turbo donor car to get everything you need.

I think I'd just go for a nice "A" cam or VW cam in the 242 and enjoy that car as it is.
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Rob Bareiss, New London CT ::: '87 244DL/M47- 229K, 88 744GLE- 218K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 88 245DL, 246K

Any Bosch fuel injection system will work with the 16V engine. The
distributor might have to be relocated if you're going with LH2.2 or
earlier. The Bosch systems are airflow meter controlled and not
mapped to the engines, so at long as the injection system is capable
of delivering enough gas at full throttle, you'll be ok. Another
option would be to go with a MegaSquirt or another type of modern
open FI system (if you're not worried about price).


I'd personally opt to maybe mate the 16V head to an 8V block,
eliminating the balance shafts. Maybe stick a turbo on that
setup. *grin*


-b.

VW cam - uh that was supposed to be "VX cam". Can't spell today.
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Rob Bareiss, New London CT ::: '87 244DL/M47- 229K, 88 744GLE- 218K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 88 245DL, 246K

for one you will need to change the distributor from rear to front mount. the 1989 short block might not be as roboust as your b21f so keep that in mind. If it were me I would probably consider putting the 16V head on the b21f.
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1990 240 Sdn 277K,tach,strut brace,turbo sway 1990 240 Wgn M47II 157K,tach,strut brace,poly bushings,IPD sways