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06-19-2010, 09:21 AM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
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.
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06-19-2010, 09:43 AM
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CC Member
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Join Date: Aug 2009
Location: Atlanta,
GA
Cobra Make, Engine: 86 Everett Morrison 90" WB. 428 FE
Posts: 1,151
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Not Ranked
You got me wondering. So I tore down my engine, try 185 lbs. All kidding aside I just weighed a FE block for you.
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06-19-2010, 10:24 AM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
Quote:
Originally Posted by Ralphy
You got me wondering. So I tore down my engine, try 185 lbs. All kidding aside I just weighed a FE block for you.
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That's it? How much does an alloy block weigh then? I would have guessed iron at more like ~300lbs and alloy at ~200lbs.....
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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06-19-2010, 11:07 AM
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CC Member
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Join Date: Oct 2008
Location: Avon,
NY
Cobra Make, Engine: 1969 Mustang Fastback Pro-Street, constantly changing ongoing project!
Posts: 746
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Not Ranked
Aluminum FE block weighs roughly 125 lbs
__________________
Mick
(Of The Troops & For The Troops)
Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body; but rather a skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, WHAT A RIDE!"
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06-19-2010, 11:28 AM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
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.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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06-19-2010, 11:51 AM
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CC Member
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Join Date: May 2010
Location: Birmingham,
AL
Cobra Make, Engine: Kirkham 289 FIA, 363 Stroker
Posts: 751
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Not Ranked
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 |
06-19-2010, 04:42 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,011
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Not Ranked
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.
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06-19-2010, 05:50 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
It might have had a big overbore, and maybe a window or two(?)  thus less material to ship.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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06-19-2010, 06:19 PM
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CC Member
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Join Date: Aug 2006
Location: Broken Arrow,
OK
Cobra Make, Engine: FFR MK III,462 FE/TKO 600, IRS w/3.27
Posts: 129
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Not Ranked
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.
__________________
Wideglidejoe
FFR#6143 Mk III: FE 462" w/four 48 IDA Weber's w/TKO 600 .82, IRS w/3.27, 17" Team III's w/245/45's & 315/35's. Gas N's.
Picked it up end of Aug '08
First start May 12, '10
First go kart May 26, '10
Tag & title 5-26-11, driving in gel coat
Painted Nov 2015
'05 Harley Wide Glide (60 hp stock, now 107 hp & 107 ft/lbs at wheel. Mid 11's in the 1/4 mi.)
'55 Bel Air hot rod project (WIP)
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06-19-2010, 07:29 PM
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CC Member
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Join Date: Aug 2009
Location: Atlanta,
GA
Cobra Make, Engine: 86 Everett Morrison 90" WB. 428 FE
Posts: 1,151
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Not Ranked
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.
Last edited by Ralphy; 06-19-2010 at 07:33 PM..
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06-20-2010, 04:56 AM
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CC Member
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Join Date: Nov 2003
Location: New Britain,
CT
Cobra Make, Engine: Size 10 Feet
Posts: 3,019
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Not Ranked
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.
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06-20-2010, 05:49 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,011
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Not Ranked
Twiggy on the Hood of My Car...
Quote:
Originally Posted by RodKnock
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.
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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? |
06-20-2010, 09:43 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by patrickt
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? |
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. |
06-20-2010, 11:37 AM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
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. |
06-20-2010, 01:51 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by Excaliber
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.  |
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