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-   -   Weight of 428 bare block?? (http://www.clubcobra.com/forums/all-cobra-talk/105141-weight-428-bare-block.html)

RestoCreations 06-19-2010 08:21 AM

Weight of 428 bare block??
 
I just sold my 428FE bare block and i need a round about number on the weight of the engine block for freight charges. Im guessing around 300 max just as a bare block.
Thanks in advance for the help.

Ralphy 06-19-2010 08:43 AM

You got me wondering. So I tore down my engine, try 185 lbs. All kidding aside I just weighed a FE block for you.

dcdoug 06-19-2010 09:24 AM

Quote:

Originally Posted by Ralphy (Post 1059460)
You got me wondering. So I tore down my engine, try 185 lbs. All kidding aside I just weighed a FE block for you.

That's it? How much does an alloy block weigh then? I would have guessed iron at more like ~300lbs and alloy at ~200lbs.....

Fordzilla 06-19-2010 10:07 AM

Aluminum FE block weighs roughly 125 lbs

dcdoug 06-19-2010 10:28 AM

Huh, for all the fuss about iron vs alloy blocks, it's less of a differential than i would have thought. I thought it was more like 100lbs.

RestoCreations 06-19-2010 10:51 AM

I was wondering how i could flip it around so easily in the back of my truck.
I didnt think there could really be a 125.00 pound weight savings with an
alew-minium block ;) However, that is how i came up with 300 pds. I figured if they weight savings were that much, then the iron block must be near 300

Thanks for going through the trouble of weighing a block for me! My UPS scale will not quite handle an fe block-ha

patrickt 06-19-2010 03:42 PM

So 60 lbs. is all the difference aluminum gets you? I would have thought it was more, but it's good to have a clear answer on it all.

Rick Parker 06-19-2010 04:50 PM

It might have had a big overbore, and maybe a window or two(?):LOL:thus less material to ship.

wideglidejoe 06-19-2010 05:19 PM

I was gonna guess 200 #'s, so I was close if it is 185#. I too have a bare block in the garage, I would've weighed it for you, but Ralphy beat me to it!!

I too thought there was more diff than 60 #'s between iron and alum.

Ralphy 06-19-2010 06:29 PM

Resto,
I bought a motor just because, I wanted loose parts for comparison and wanted to weigh anyhow. The motor is a 352 .030 over. So it was no problem here.

RodKnock 06-19-2010 10:31 PM

I posted this on the other thread:

From poking around it seems that the 185 lbs for a 428 is about right. The original cast iron 427 blocks are around 200 lbs. per the Genesis site. The Pond aluminum block is about 120 lbs and the Shelby aluminum block is 125 lbs. The Genesis cast iron block weighs 230 lbs.

http://www.shelby-cars.com/Shelby_Alum_Block.htm
http://www.genesis427.com/Blocks1.htm
http://www.robertpondmotorsports.com...gine-block.htm

strictlypersonl 06-20-2010 03:56 AM

Want to lose weight the cheapest way? Aluminum heads, water pump and intake manifold will take off more weight than the change to an aluminum block. (90 lbs less on my scale, resulting in a 520 lb 427). Changing to aluminum block means that, first of all, you need heavier sections to maintain the same stiffness (the basis for a reliable bottom end), plus there are all those sleeves. No miracles here.

patrickt 06-20-2010 04:49 AM

Twiggy on the Hood of My Car...
 
Quote:

Originally Posted by RodKnock (Post 1059594)
From poking around it seems that the 185 lbs for a 428 is about right. ... The Pond aluminum block is about 120 lbs and the Shelby aluminum block is 125 lbs.

So there's a 60 lb. difference between your Shelby and my old-school iron 428? That "supermodel on the front of your car" -- she's a bit... anorexic, no?:LOL:

RodKnock 06-20-2010 08:43 AM

Quote:

Originally Posted by patrickt (Post 1059610)
So there's a 60 lb. difference between your Shelby and my old-school iron 428? That "supermodel on the front of your car" -- she's a bit... anorexic, no?:LOL:

Besides the weight difference, assuming posted figures are correct, you should peruse the details of the both the Shelby and Pond blocks like thicker decks and oil pan rails, billet steel caps, priority main oiling (CSX), etc., uh, and it's a 427, not a 428.

Just remember, there's around a 500 pound total difference between our cars. :)

Excaliber 06-20-2010 10:37 AM

Well, I could stand to loose a litte weight myself, the driver. Might the best way to reduce the car's weight overall, save money, be healthier, it's a win/win all around. :)

RodKnock 06-20-2010 12:51 PM

Quote:

Originally Posted by Excaliber (Post 1059659)
Well, I could stand to loose a litte weight myself, the driver. Might the best way to reduce the car's weight overall, save money, be healthier, it's a win/win all around. :)

It's a lot easier to pay someone like Barry or Keith $5,000 for an aluminum block, save the pounds that way, than working out, lifting weights, bicycling, running, playing sports everyday for the rest of your life. Are you ready for the commitment? Not many are. :cool:


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