Difference between gen I and gen II engines

[speedracervr4]

Tried searching, but I couldn't find any info on the differences. Could I put a 2nd gen motor in a first gen car? Will the motor mounts work? Flywheel/transmission bolt up? How different is the wiring harness? Any info would help. Thanks

 

[JonB]

Short answer...NOT a drop-in-swap-in. But I have seen a Viper motor in a Miata, so yes it can be done. The PCM and wiring and plumbing are totally different, and thats just for starters...

 

[speedracervr4]

block the same? crank? heads?

 

[99 R/T 10]

block the same? NO crank? Maybe........ heads? NO

...................................

 

[jdeft1]

Gen 1 is what it is. (faster than anything else built in the early 90s..)
Want a faster car?? get a gen 2 or newer.... Way easier to mod etc...

 

[Viper Wizard]

Gen 1 is what it is. (faster than anything else built in the early 90s..)

And....do I need to say it....it was RED!!!!

 

[SkyBob]

But I have seen a Viper motor in a Miata ...

Oh, that I would like to see! Do you have pictures? I guess I could search the archives, or maybe Google it even.