I wanna see a miata engine swapped in instead! I've actually thought about it, since I have a miata.

The bolt pattern is the same as the m10??    If it is longer wouldn't the shift linkage be further back too?

I'm dying to find a nice 5 or 6sp conversion other than the 320i tranny.

The newest Miata uses a 2.0 liter duratec.  This engine is the 2.3 liter version from the Ranger or Mazda 3.  The same engine with a slightly longer stroke.

Ok, I must just be confused. What are you swapping this into a M10 2002 or a miata?? Am I on the wrong forum ?

This is a Duratec engine being swapped into a '69 BMW 2002.

The M10 and getrag 245 are coming out and being replaced by a 2.3 liter duratec and a Miata 5 speed transmission.

Ah, sorry. I'm a little slow, lol..  If you are selling the 245, please pm me!

Wow, love to see this build! Tons of fabrication no doubt?

It doesn't look too bad.  Engine and transmission mounts of course.  Modify the driveshaft.  I think the biggest pain will be the front sump oil pan.

Luckily the engine is basically the same size as the M10 and the transmission is actually a little smaller in width and height.  The clutch slave is in the same spot, the starter and alternator are basically the same places so that minimizes wiring changes.

Looks really promising. I have a Mazda 3 and used to have a gen 1 Miata, great gearbox! 

Just a word of warning about going to one piece driveshaft. I got massive vibration when I tried that in my racecar. A friend (tzei on the forum) had the same result trying that.

It should work if the shaft diameter is large enough but you might be good to think about back up plan too.

Thanks Tommy.  Yeah, vibration is always a worry, but the driveshaft will be about a foot shorter than the BMW one and it is about 1/2' larger diameter.  I'll only use the last 5.5" of the BMW shaft.

Where the end of the new transmission sits now, the output is right about where the center bearing mounts are.  I also have a long neck diff so that cuts a few inches off too.