Give me some opinions on what you think is the best motor swaps done on the E21.... I kinda like the S14 but I will always love the original M10.

What tail light conversion? I don't see pics.

I do not see any photos.

I know. My bad. I changed my mind on the type of thread.

As far as engine swaps go, I think the S14 is probably the "best," in keeping with the original spirit of the lightweight, 4-cyl car. I'm going to go with an M20 because they're much less expensive...and I enjoy the idea of 6-cyl torque. :) Seems as the though the M20 isn't quite as stout as the M30, but weighs a hell of a lot less. Besides, there are bizillions of wrecked e30s sitting around, just waiting to have their engines plucked for our uses :cool
AND: You get turbocharging/supercharging options with an M20.
nick
Here's a link to a guy who is doing an M20 swap on an e21:

http://www.bimmerwerkz.com/forum/index.php?showtopic=35791

i say an e36 m3 swap

Okay, okay, what I really want is a built s38. Sure it would weigh a ton. Who cares :D 300+hp with basic bolt-ons in Euro trim...you'd never keep tires :stickoutt
Nick