Mod motors ?

[Stpro]

Will a 4.6 block and a 3.9 block interchange?
Keith
93 BLACK
93 MAROON
Only use the brakes to stop and get gas.

 

[sleeper]

no

3.9 is not a mod motor

 

[Stpro]

I was hoping it was,It would make it easier to put my extra motor and Vortech in a LS I have been looking at with a blown motor.
Keith
93 BLACK
93 MAROON
Only use the brakes to stop and get gas.

 

[46callaway]

3.9 is definately a mod motor but the blocks don't interchange.

 

[Stpro]

I may have to investigate this swap a little more.
Keith
93 BLACK
93 MAROON
Only use the brakes to stop and get gas.

 

[Eli]

It is interchangeable with jaguars 4.0 engine from the XK8/XKR. The Jag came in a factory supercharged flavor, and when I was doing my research they had one in a junkyard in FL for $7500. Factory 390hp rating, just like the cobra.