I found this site while looking for some Am engine weights and thought it might be useful here for those doing swaps. I will say I don;t know how accurate the numbers are, but there seems to be quite a bit of research done.

http://www.35pickup.com/mulligan/weight.txt

Glad I'm not the only one with this on my mind.

Cosworth V8 - 286lbs?

Sounds fun, if you can find one....

the next best thing and only $2k brand new

http://www.summitracing.com/parts/NAL-12499529/

jim

I was actually looking at Am to Am swaps The 401 I have for my Chevy truck is only 50 lbs heavier then the stright six that it came with from 105 h.p. 193 ft. lbs up to 325 h.p. 445 ft. lbs and only a 50 lb weight gain