You'll have to search the web for engine weight. Some engines are pretty tough to find.

Here's a thread I started a while ago comparing engine weight:
http://forums.s2ki.com/forums/showthread.p...threadid=152112

Also, at rx8forums.com, there's a thread that states that the Renesis (RX8) weighs 303 lbs...not 275 lbs. The 275 was first thrown around but then apparently was changed to 303 lbs. Not sure which is correct now. I'm leaning toward the 303.

 

Did you look at the two posts right above yours?

Also, this gets into an interesting part of the equation too. Sometimes it is hard to tell if they are showing weight with accesories, weight with accesories and transmission (which some will put down for the engine weight), or completely stripped engine.

 

How much does the S2000 engine weigh, either one of them?

How does that compare to some of the other Honda I4s, like the Integra Type R or the 5th gen Prelude's 2.2L?

 

Engine Weight Reference

http://www.vintagehotrod.net/ford/ContentE...ss20-30-38.html