Hey guys, im new to the fc platform, i have a 91 rx7 with a bad motor (previous owner let it overheat) im looking for a cheap swap that can handle around 5-600hp, doesn’t necessarily have to be cheap, or one of the easier swap, i was thinking ls or 2j but i also want to stay manual, any suggestions?

 

Ls...

 

I concur. There are companies out there that make it pretty close to a bolt in affair. Here is one example:
https://www.roninspeedworks.net/inde...&product_id=64
https://www.roninspeedworks.net/inde...tegory&path=59
Still not cheap though, but I don't know if any swap really is once it's all said and done..
I think your in the wrong section though. Try here:
https://www.rx7club.com/other-engine...s-non-v-8-118/
or here:
https://www.rx7club.com/v-8-powered-rx-7s-299/