CSVT#49
Addicted CEG'er
I'm just going to throw this out there I know you are trying to make this as simply as possible... but your going to end up creating new motor mounts and making significant changes to the subframe. Why not go one step further...
Go grab yourself a VVT 3.5L out of a donor car or if you can find one (expensive) a Ecoboost engine. Engine bay space will no longer be a problem for you. What has stopped most people from trying to install a late model engine has been the added length to the block and VVT, which prevented it from being a drop in replacement. Going RWD will eliminate the concern about the length. Then there is the concern about onboard elecontronics... well your already going to have to do something about the speedo... might as well just move on. Get yourself a matching harness and ECM(s) for the 3.5L, which will handle all of the needed engine controls and figure out the details. Just thinking off the top of my head here... but all of the cluster is using just signal wires... I would just carry over those sensors and populate the needed pins to make the cluster work. If it needs to come from the SVT ECM use that ECM only to run the gauge cluster then. Although I've got to imagine most of those signals would be available from the new ECM... Grant it I just really simplified it, but that said it should not be that complicated as long as the wiring diagrams are available. No different then when I swapped in a full 97 Trans Am interior into my 85 Camaro.
Go grab yourself a VVT 3.5L out of a donor car or if you can find one (expensive) a Ecoboost engine. Engine bay space will no longer be a problem for you. What has stopped most people from trying to install a late model engine has been the added length to the block and VVT, which prevented it from being a drop in replacement. Going RWD will eliminate the concern about the length. Then there is the concern about onboard elecontronics... well your already going to have to do something about the speedo... might as well just move on. Get yourself a matching harness and ECM(s) for the 3.5L, which will handle all of the needed engine controls and figure out the details. Just thinking off the top of my head here... but all of the cluster is using just signal wires... I would just carry over those sensors and populate the needed pins to make the cluster work. If it needs to come from the SVT ECM use that ECM only to run the gauge cluster then. Although I've got to imagine most of those signals would be available from the new ECM... Grant it I just really simplified it, but that said it should not be that complicated as long as the wiring diagrams are available. No different then when I swapped in a full 97 Trans Am interior into my 85 Camaro.