As I was removing the B20VTEC from my 99 Integra to install a JDM K20A with the new Hasport EG/DC K-Series mount kit (shameless plug), it dawned on me that I still had not seen any real numbers regarding the weight differences of these things. I dug out my trusty Longacre corner balance scales, zero'd them out, and tossed the motors on em. I made sure to take pictures of the scale readings, name them, save them to the pc, and clear out the camera before I did the 2nd motor. I also tried to keep the motors as similiar as possible, neither had an exhaust manifold of any kind, or an A/C compressor. The B-Series motor DID have a power steering pump, and the A/C torque mount, so factor in 5 lbs or so on top of the numbers below..


B-Series engine/trans: 401 pounds

K-Series engine/trans: 403 pounds

In conclusion, these are surprising numbers, I figured (like most I bet) that the K-Series motor would be lighter. I'll weigh a few more B and K series swaps in the coming weeks and see what else I find.

 

Very close numbers.

 

The exhaust manifolds will make a difference. One being cast iron and the K-series being tubular steel. Also, the the dual runner GSR intake manifold would add some. Not trying to bash, just adding.

 

but now at least we have a place to point the people who keep telling everyone that the K-series is 70lbs lighter then a B-series... Ive seen ALOT of people say they were lighter, but I remmeber brian g said they were actually really close in weight, and now we have proof.


for a good idea

 

Thanks Joe. (for the plug and weights)
I think you'll find that he B20Vtec weighs closer to a B16A than a B18C too.

brian g

 

tasty info...

 

What about the weight of the trannys/axles/other stuff that will be swapped along with it?

 

Those were weighed with transmissions. The AC compressor and axles are almost identical in weight.

brian g

 

great info! thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by locash &raquo;</TD></TR><TR><TD CLASS="quote">I dug out my trusty Longacre corner balance scales, zero'd them out, and tossed the motors on em.</TD></TR></TABLE> Wow, the B series motor has much better weight distribution, its closer to 50/50... on the cornerweight scales....

lol,
actually I am surprised they are so similar! good info!

 

how about a comparison between h-series and b-series?

 

yeah to put an end to that shitty debate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda Sport &raquo;</TD></TR><TR><TD CLASS="quote">how about a comparison between h-series and b-series?</TD></TR></TABLE>

What argument? Of course few people listened when I told them the B16A and K20A weighed the same. The B20Vtec will weigh within a couple of pounds of a B16A. the H22 weighs 100lbs more than a B16A or about 80lbs more than a B18C. We weighed them a couple of years ago for a Sport Compact Car article.
brian g

 

Any info on D series weights? Thanks.

- wei

 

88-95 D15 engine and trans about 300lbs. We weighed that too.

brian g

 

Great info, thanks!

 

HOw about the k24 is that the same as the k20 or is it a little heavier?

 

I'll weigh one or maybe Joe can do it.

brian g

 

Good info

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brian g &raquo;</TD></TR><TR><TD CLASS="quote">

What argument? Of course few people listened when I told them the B16A and K20A weighed the same. The B20Vtec will weigh within a couple of pounds of a B16A. the H22 weighs 100lbs more than a B16A or about 80lbs more than a B18C. We weighed them a couple of years ago for a Sport Compact Car article.
brian g</TD></TR></TABLE>


awesome job!