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How much heavier is a 440 then a 383? #1001259 05/28/11 09:06 AM 05/28/11 09:06 AM
Joined: Jul 2006 Posts: 174 New Jersey, USA J JeffRacerG OP member
JeffRacerG OP member J Joined: Jul 2006 Posts: 174 New Jersey, USA	I just put a 440 in my 70 Road Runner and replaced a 383. I love the motor, but it appears that the front end is lower by at least an inch. I kind of like the look, but will it hurt anything if I leave it that way? Secondly, to raise it can I simply turn up on the torsion bars, or do I need different ones. If it works, I'll add a photo so that you can see the new stance. 6654781-t85Brf1QQl6O3668.502.75.47150602.jpg (100 downloads)

Re: How much heavier is a 440 then a 383? [Re: JeffRacerG] #1001260 05/28/11 09:41 AM 05/28/11 09:41 AM
Joined: Mar 2007 Posts: 2,252 Sebring, Florida M Mopar Grandpa top fuel
Mopar Grandpa top fuel M Joined: Mar 2007 Posts: 2,252 Sebring, Florida	You will need to have the front end aligned as any adjustments to the torsion bars will affect the caster/chamber. Put a level on the rims and see if they are way out of plumb as the car now sits. You will need to cut a block of wood to length and then put the level on the block.

Re: How much heavier is a 440 then a 383? [Re: JeffRacerG] #1001261 05/28/11 09:48 AM 05/28/11 09:48 AM
Joined: Jan 2003 Posts: 75,020 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,020 U.S.S.A.	Your front end must have been pretty low to start with if that is only an inch. Take it to an alignment shop and have them reset the ride height and check alignment.

Re: How much heavier is a 440 then a 383? [Re: JohnRR] #1001262 05/28/11 09:54 AM 05/28/11 09:54 AM
Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O 70Cuda383 Too Many Posts
70Cuda383 Too Many Posts Joined: Oct 2003 Posts: 21,345 Marysville, O-H-I-O	a 440 shouldn't be much more than 100 lbs heavier than a 383...afterall, same heads, same accessories, intakes aren't going to be that different in weight, the block is what...1/2" higher? that 1/2" of cast iron on both sides can't weigh THAT much. what happens if you go over and sit on the fender? Photobucket sucks

Re: How much heavier is a 440 then a 383? [Re: 70Cuda383] #1001263 05/28/11 10:17 AM 05/28/11 10:17 AM
Joined: Jan 2003 Posts: 2,023 Lincoln NE 4 440forPOWER super gas
440forPOWER super gas 4 Joined: Jan 2003 Posts: 2,023 Lincoln NE	I thought 20lbs difference in blocks.

Re: How much heavier is a 440 then a 383? [Re: 440forPOWER] #1001264 05/28/11 10:29 AM 05/28/11 10:29 AM
Joined: Jan 2003 Posts: 20,789 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,789 A collage of whims	What I can think of being heavier: block, crank, rods, pistons, intake, distributor. Some of that is only by ounces, so my GUESS is 20-30 lbs. I think AndyF has some info on relative weights in his book, but IIRC some of the motors he weighed had aluminum heads & whatnot.

Re: How much heavier is a 440 then a 383? [Re: topside] #1001265 05/28/11 11:45 AM 05/28/11 11:45 AM
Joined: Apr 2008 Posts: 1,285 Pacific NW USA CompSyn pro stock
CompSyn pro stock Joined: Apr 2008 Posts: 1,285 Pacific NW USA	Quote: What I can think of being heavier: block, crank, rods, pistons, intake, distributor. Some of that is only by ounces, so my GUESS is 20-30 lbs. I think AndyF has some info on relative weights in his book, but IIRC some of the motors he weighed had aluminum heads & whatnot. Yeah, according to AndyF, "as much as 40 pounds less" when talking about a complete engine.

Re: How much heavier is a 440 then a 383? [Re: CompSyn] #1001266 05/28/11 11:49 AM 05/28/11 11:49 AM
Joined: Jul 2008 Posts: 30,431 Florida STAYcation BeEtLeJuIcE ! The village idiot's idiot
BeEtLeJuIcE ! The village idiot's idiot Joined: Jul 2008 Posts: 30,431 Florida STAYcation	Quote: "as much as 40 pounds less" ..... there HAS TO BE a specific # .... if all bolt on items are the same.

Re: How much heavier is a 440 then a 383? [Re: BeEtLeJuIcE !] #1001267 05/28/11 11:55 AM 05/28/11 11:55 AM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	I think its between 60-80 lb. difference in the block, your looking at 1" extra meat on each side. The only extra diffence elsewhere would be in the intake (cast iron) & dist., but if your installing an aluminum intake & billet dist., that shouldn't affect it by much. Last edited by joedust451; 05/28/11 11:57 AM. 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: How much heavier is a 440 then a 383? [Re: JeffRacerG] #1001268 05/28/11 11:56 AM 05/28/11 11:56 AM
Joined: Nov 2007 Posts: 21,825 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,825 Kirkland, Washington	I agree that the difference has to be on the order of 20-30lbs. As far as ride height, dropping your car an inch is no big deal IF you mean an inch from factory ride height spec. But what if your car was already low before the swap? Measure the ride height now compared to spec. Heck---many thousands of car owners took advantage of the adjustability of torsion bars to lower there car a bit (1-1.5") with no ill effects. If your worried about a SLIGHT change in tire wear, and you drive your car a LOT, then get it re-aligned

Re: How much heavier is a 440 then a 383? [Re: Pacnorthcuda] #1001269 05/28/11 11:59 AM 05/28/11 11:59 AM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: I agree that the difference has to be on the order of 20-30lbs. As far as ride height, dropping your car an inch is no big deal IF you mean an inch from factory ride height spec. But what if your car was already low before the swap? Measure the ride height now compared to spec. Heck---many thousands of car owners took advantage of the adjustability of torsion bars to lower there car a bit (1-1.5") with no ill effects. If your worried about a SLIGHT change in tire wear, and you drive your car a LOT, then get it re-aligned How could it only be an extra 20-30 lbs. when you have that extra iron on both sides. Here you go... 50 lbs. http://www.35pickup.com/mulligan/weight.txt Last edited by joedust451; 05/28/11 12:04 PM. 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: How much heavier is a 440 then a 383? [Re: joedust451] #1001270 05/28/11 12:02 PM 05/28/11 12:02 PM
Joined: Nov 2007 Posts: 21,825 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,825 Kirkland, Washington	Quote: Quote: I agree that the difference has to be on the order of 20-30lbs. As far as ride height, dropping your car an inch is no big deal IF you mean an inch from factory ride height spec. But what if your car was already low before the swap? Measure the ride height now compared to spec. Heck---many thousands of car owners took advantage of the adjustability of torsion bars to lower there car a bit (1-1.5") with no ill effects. If your worried about a SLIGHT change in tire wear, and you drive your car a LOT, then get it re-aligned How could it only be an extra 20-30 lbs. when you have that extra iron on both sides. Explain "extra iron on both sides" I can only think of the increased deck height, partially offset by the larger bores, but I may very well not be looking at this correctly.

Re: How much heavier is a 440 then a 383? [Re: Pacnorthcuda] #1001271 05/28/11 12:08 PM 05/28/11 12:08 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: Quote: Quote: I agree that the difference has to be on the order of 20-30lbs. As far as ride height, dropping your car an inch is no big deal IF you mean an inch from factory ride height spec. But what if your car was already low before the swap? Measure the ride height now compared to spec. Heck---many thousands of car owners took advantage of the adjustability of torsion bars to lower there car a bit (1-1.5") with no ill effects. If your worried about a SLIGHT change in tire wear, and you drive your car a LOT, then get it re-aligned How could it only be an extra 20-30 lbs. when you have that extra iron on both sides. Explain I can only think of the increased deck height, Thats what i'm reffering to. I guess i should add the crank/pistons ect. It shows the B as 620 & the RB as 670 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: How much heavier is a 440 then a 383? [Re: joedust451] #1001272 05/28/11 12:28 PM 05/28/11 12:28 PM
Joined: Nov 2007 Posts: 21,825 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,825 Kirkland, Washington	OK, 50 lbs. I suppose that COULD lower a car buy a full inch, likely the actual drop is less, I would think.

Re: How much heavier is a 440 then a 383? [Re: Pacnorthcuda] #1001273 05/28/11 12:53 PM 05/28/11 12:53 PM
Joined: Feb 2003 Posts: 8,020 Pangaea B5 Bee master
B5 Bee master Joined: Feb 2003 Posts: 8,020 Pangaea	440 deck isn't .5" or 1" more. it's .765" and it is in the water jacket area so it's not an extra 3/4" of solid iron. Don't forget the 440 larger main bores and counterweight reliefs that reduce the weight. Larger 440 bore is a moot point since the water jacket is about the same. My guess is 33 lbs total- block 20 lb rods 2 lb 8 pistons 1 lb intake 5 lb I forgot the pad on the 440 by the dist, that must be 2 lb, so 35 lb total.

Re: How much heavier is a 440 then a 383? [Re: B5 Bee] #1001274 05/28/11 02:06 PM 05/28/11 02:06 PM
Joined: Nov 2006 Posts: 1,458 oklahoma F forphorty pro stock
forphorty pro stock F Joined: Nov 2006 Posts: 1,458 oklahoma	http://www.arengineering.com/articles/sonicbig.html

Re: How much heavier is a 440 then a 383? [Re: forphorty] #1001275 05/28/11 02:39 PM 05/28/11 02:39 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: http://www.arengineering.com/articles/sonicbig.html Good info, its nice though to see theres not much difference from the 383 too 440 weight. 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: How much heavier is a 440 then a 383? [Re: joedust451] #1001276 05/28/11 04:35 PM 05/28/11 04:35 PM
Joined: Jul 2006 Posts: 174 New Jersey, USA J JeffRacerG OP member
JeffRacerG OP member J Joined: Jul 2006 Posts: 174 New Jersey, USA	Well, I crawled under the car today and found that the torsion bar cross member is starting to tear from the inside out right near the torsion bar socket. Must have just happened after the motor change. What is the best fix? I see Classic Industries offer repair caps? What's the best way to go?

Re: How much heavier is a 440 then a 383? [Re: joedust451] #1001277 05/28/11 04:49 PM 05/28/11 04:49 PM
Joined: Apr 2005 Posts: 15,134 Kelowna, B.C. Canada D DPelletier I Live Here
DPelletier I Live Here D Joined: Apr 2005 Posts: 15,134 Kelowna, B.C. Canada	Quote: Quote: http://www.arengineering.com/articles/sonicbig.html Good info, its nice though to see theres not much difference from the 383 too 440 weight. Interesting; just as I figured: not a heck of a lot of difference.....15 lbs diffference in a shortblock, a few in the intake.....MAYBE 20 lbs or so. I have a really hard time believing it would change a car's ride height. How many of you need to adjust your torsion bars after installing an aluminum intake or headers......'cause it's the same thing. Dave 1970 Super Bee 440 Six Pack 1974 'Cuda 2008 Ram 3500 Diesel 2006 Ram 3500 Diesel 2004.5 Ram 2500 Diesel 2003 Ram 3500 Diesel 2006 Durango Limited [url] http://1970superbee.piczo.com [/url]

Re: How much heavier is a 440 then a 383? [Re: DPelletier] #1001278 05/28/11 05:28 PM 05/28/11 05:28 PM
Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada R RUNCHARGER I Live Here
RUNCHARGER I Live Here R Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada	Yeah: That 100lb estimate kind of had me giggling a bit. I've dumped a 426 Hemi in where a 383 was and it didn't sit like that sick Road Runner does. Repair it correctly when you fix it. Sheldon

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