I'm putting and ls1 in my 240z but i dont have a ls1 right now all i have is a 5.3 iron block.

I want to know if the block is the same size as the ls1 externally and if the motor mounts are in the same location and bolt pattern as the ls1 to 5.3.


The block will be for sale once i am done with it just an FYI.

 

All external dimensions the same.

 

Thanks. Time to build the motor mounts and get that sucker in there so i starts to look like a car again.