Block modifications

[robertisaar]

http://en.wikipedia.org/wiki/List_of_GM_bellhousing_patterns

http://en.wikipedia.org/wiki/GM_Iron_Duke_engine

"The Tech IV uses the same bellhousing pattern as the 2.8 L 60-Degree V6."

[01GPGT]

i found a thm700 for a 2.5L 4cyl S-10 any one know what bolt pattern that has? i can not see to find mutch info on it i think it is the iron duke like what is also in the F-bodies and fiero

[01GPGT]

so i could in theory(sp) buy a 4L60 from a LS1 car remove the bell housing and just buy a bell housing fror a 2.2 s-10? well jeese this is a bit easier then a i thought.

the controler will be a snag though i bet they are pricey

[geoffinbc]

Yes later 4L60E Transmissions have removable cases. The 2.2L was used until 02 or 03 so you can choose one with the 2 part case if you wish.

[01GPGT]

the trans will be rebuilt before it sees any real power so that is not a consern of mine

[WrathOfSocrus]

Are the those transmissions the same as the 4.3 except for the bellhousing? I know later year auto's with the removable bellhousing look identical but i believe those are electrically different from the mid 90's ones. I was reading on s10 forum that the 2.2 auto is the 'little brother' of the 4.3 auto but wasnt sure what the differences were or what years it covered.

[01GPGT]

well hot damn. this makes it alot easier

[ForcedFirebird]

Yes, same pattern.GM small corporate pattern.

[01GPGT]

really? i did not know that. doese the 2.2 have the metric bolt pattern like the 660?

i can get a 4l60 for a S-10 cheaper then one from a camaro as well so this would be a win

[geoffinbc]

You don't necessarily have to use the T5 from an S-10. Chevy used the same trans to bellhousing patter and Ford in the later years. I am not sure on all the details but a T5 from a Mustang or perhaps a T56 might be a possibility .

If an Auto is your choice then would a 4L60E from a 2.2L S-10 fit the bill? The starter is on the driver side. The only thing you would need is a controller and several companies have that covered.

[ForcedFirebird]

94 up is electric trans for the "L" designation.

[01GPGT]

i know that i had a brain fart


so any 4L60 before it became electronicly controled

[robertisaar]

thats the more technical way of saying it(and correct according to GM), but usually when i explain it that way, i get a real confused stare...

[ForcedFirebird]

T=FWD(or technically with a fiero its RWD)
L=RWD....

4l60=/=4t60

t = transverse (so that makes Fiero correct)
l = longitudinal

[robertisaar]

T=FWD(or technically with a fiero its RWD)
L=RWD....

4l60=/=4t60