purple82

What does a 12a with the carb and exhaust manifold attached weigh?

RotorMotorDriver

iTrader: (1)

well you could take the engine out of the car and then weigh the car, and subtract the difference from the total weight of the car, but then again if you had the engine out maybe you should just weigh that, i think it would be easier

~T.J.

By the way, if you couldnt tell i was being tottaly sarcastic with the whole idea, and im sorry i dont know how much the engine would weigh...i couldnt even guess

RotorMotorDriver

iTrader: (1)

Well i just found out that if you accidently click on the submit button and then hit stop before it loads if you havent typed anything it sends a blank one...weird eh?

peejay

I dunno, but my 302 was lighter... I could pick up my 302 and move it around the shop floor, need 2 people for a 12A.

That's with manifolds and flywheel attached, BTW. So was the 302. Heck the 302 even had the tranny still attached, just let the tailshaft drag

ladelberg

Not trying to start an argument here, peejays comments generally seem accurate so, with all due respect...

I have moved 12As around (complete with intakes, exhaust etc) and more than a few v8 (305, 327, 350s) and v6 (2.5L, 2.8L, 3.5L) (basically all different shapes and sizes) in my life, I am skeptical of this comment. Lacking measured weights, it is purely qualitative and hence subjective. I think I will do some research on this one.

ladelberg

Found a link http://www.angelfire.com/ar/dw42/engfyi.htm

12A rotary between 260 and 350 lbs. Ford 302 between 460 and 500 lbs. My chevy s10, 425 lbs. My Acura Legend V6, 491 lbs.

Sorry peejay....

peejay

Huh, that's odd.

I distinctly remember hauling the 302 around, and I also distinctly remember killing my back (along with a friend's back) dragging a 12A off of the bed of a pickup and onto some stacked tires. Now I didn't use any scales or anything, just personal experience. I really doubt that I could have lost THAT much strength in a year's time. Especially considering that one of my favorite tricks is picking up a rear corner of a FWD car so the tire hovers and inch or two off the ground

ladelberg

Well, one possible explanation, 12As at least are hard to get your hands around and they dont have heads you can grab as a lifting point. Anyway, you may have had more adrenaline when you were lifting those other engines around, you fear of being crushed and all. hahaha.

Another thing I though interesting, my 4.3L V6 chevy engine weighs less than my 2.5L Honda/Acura Legend Engine, pretty interesting as well (having spoken to my buddies at the junk yard, they attest to the Honda engine being abnormally heavy for its displacement, probably why many of them have 200,000 miles and are still going).

Jeff20B

iTrader: (13)

Two people can easily carry a 13B (with stock 40LBS flywheel and no manifolds) so I don't know what kind of crack peejay has been smoking, but give me some 'cause I want to carry a V8! Seriously, a freind and I have carried a 350 bare block no problem, and I could even partially lift my complete '72 RX-2 12A about an inch off the floor (very heavy overbuilt old school rotary). My friend could pick it up off the floor rather easily. He could also lift a Fiat 1500 I4 about the same. A rotary may weigh more than a VW bug flat 1600, but a V8 is much heavier (than both, duh).

PaulFitzwarryne

The weight of a 12a engine with ancillaries is abour 345-350lbs depending on the version. This is about 15 lb lighter than the 13b.
For the turbo versions add about 10lbs and 20 lbs respectively.

peejay

Yeah a 13B shouldn't weigh significantly more than the 12A... the rotors are about the same weight give or take an ounce or two depending on year ('84-85 rotors weigh almost exactly what '89-up "lightweight" 13BV rotors weigh ) and the rotor housings are 10mm thicker apiece, that weight is in the middle where the wall thicknesses are at their lowest, the E_shaft is 20mm longer and the manifolds are 20mm wider and the exhaust manifold is 10mm wider. (only spans to the MIDDLE of the rotor housings, not to the side housings) So weight difference is so minimal as to not to be significant.

And BTW - it took me and a "not a wuss" friend of mine to drag a bare 12A (no manifolds, accessories, or flywheel - just the block) down a flight of stairs into my basement. Weird.

And there's plenty of handholds on an all-up 12A - grab the downpipe at one end, and at the other end grab the engine mount bracket. It's just HEAVY. For the 302 I'd just straddle the engine, grab a heand on each exhaust manifold, pick it straight up, and walk across the floor to where I need to go.