13b from 87 gen2 into gen 1

[rotary_rogers]

just out of interest how easy is this, are there any complications abd will the mounts and stuff work as i am unsure if they did anything bigger than a 12 in the gen 1. any info would be great.

cheers

louis.

[MikeLMR]

http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=5143&highlight=13b

[rxrotary2_7]

It is a very simple swap and by reading that thread linked, there seamed to be some confussion.
You will only need the 12a front cover and a 5letter oilpan and will need to modify oil pickup to fit the 5letter pan...
 loosen up the mounts in the car and once the motor is in, you will just tighten up. idealy you would want to make a new plate that would bolt to the mounts "properly" but using oem will work fine. oilpan holes will not line up. make some dimples around the pan and block to help seal, and use the holes that will line up. you can tap into the underside if needed.

[Brett]

I thought the later JDM and US Gen1\'s had 13B\'s anyway?  So surely there are oem mounts available, as well as all the other required parts....?

[rxrotary2_7]

yes, it was a gsl-se (5 letter as we say) and this is what you would need...