Ttownthomas

Oh boy. I think I screwed up. I'm fairly mechanical but I'm not a technician. I am swapping a 5.3 from a 2004 envoy xl into a 1990 Volvo 240. The trans from the envoy was out and I ended up with a second 2004 4l60 envoy trans from a 4.2 truck that had recently been rebuilt. As a result I sold the trans from the v8 donor car. I'm now getting the rest of my ducks in a row and I think that the bell housing holes on the trans from the 4.2 are not going to line up. I think I can just swap on a 5.3 bell housing but since I don't know what I don't know I am worried about this and other issues like with the electronics. What am I missing?

Ttownthomas

By the way is it bad form to link to another forum with a build thread

tfi racing

iTrader: (2)

Ask over in the auto trans section,you should be good with only the bellhousing swap but you may have to swap the input shaft,T/C and front pump as well in the worst case scenario,the rest of the trans and wiring should be ok.

Project GatTagO

iTrader: (7)

The bells housing for the I-6 and the 5.3L are definitely different, but you should be able to swap to a V8 bellhousing. Another option might be to see if a junk yard in your area will swap the transmissions for you.

Andrew

upflying

The 4.2 I6 is called an Atlas engine, also shared with the I5 and I4 (less cylinders) in the previous generation Chevy Colorado.
https://en.wikipedia.org/wiki/Genera...s_Atlas_engine

HILROD

The torque converters swap from I6 to V8, so I'd guess the trans will work with a bellhousing swap.