diff. between 90 and 91 motor?

[pitbull419]

i have been doing som research about the differences between the 90 and 91 cars.
like the brakes and rear end i belive(is this correct?).well i found a 90 laser with only 73 thousand original miles. the car is totaled but the engine and tranny are untouched and complete.well anyways i was wondering if there are any differences between the 90 and 91 turbo engines if so what are they?and are any of them on the block?
thanks

 

[nikkeebabee]

I know that the oil filter housings are different, beyond that I think the block is the same...

 

[fourreGsixty3]

http://members.shaw.ca/costall/1000Q/answers-makeandmodel.htm
scroll down til you see this title"
What are the differences between a [model year] and a [model year]? "
other then those differences, the oil filter housing is different.

Dustin

 

[pitbull419]

so i can put a 90 motor in a 91 with absolutly no problem
is the oil filter housing beter or can i put one of a 91 on the block?

 

[slugsgomoo]

if you have the entire filter housing/cooler assembly, the 90 setup is better. Frankly, even with no cooler it's better, just to eliminate that source of coolant/oil mixture (potentially).

Obvious differences from the 90 motor that won't work with your 91 car are transistor pack, CAS, throttle body (maybe, can't remember). The vfaq should go more in depth, but the head/block/basics are all the same for all turbo six bolts.

 

[pitbull419]

so can i take those parts of my 91 and put them on the 90 motor
and make it work correctly just by swapping parts?

 

[tstkl]

keep your 91 ignition and throttle body and you will be fine. The WHOLE ignition.