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LS1 - LT1 Swap Weights?

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Old Jun 10, 2004 | 07:57 PM
  #1  
Adrenaline's Avatar
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From: San Rafael, California
Car: 92 Camaro RS
Engine: 305
Transmission: 700R4
LS1 - LT1 Swap Weights?

Just wondering for you swapers, what your car weighed before and after.
So how much did the LT1 add or drop, same with the LS1, the 6 speed, ect.. ect.. just wondering what the difference is after the swap. (obviusly the power is worth the weight gan :-D )
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Old Jun 11, 2004 | 01:45 AM
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Both the LT1 and LS1 weigh less then a SBC

The LS1 is about 150 pounds lighter, and it raised my car about .5-1"

The LS1 is an all aluminum engine

As far as weights are concerned, for a general estimate on stock engines it's like this......

SBC>LT1>LS1
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Old Jun 11, 2004 | 05:40 AM
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From: San Rafael, California
Car: 92 Camaro RS
Engine: 305
Transmission: 700R4
Any actual weights.
anyone weigh there cars?
thank you tho, flynlow
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Old Jun 11, 2004 | 11:03 AM
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Originally posted by Adrenaline
Any actual weights.
anyone weigh there cars?
thank you tho, flynlow
Umm, I don't think anyone with an LS1 has weighed there car before and after.....But you take a the stock weight of your car just minus 145-150 pounds from it.......Maybe some with an LT1 will chime in and tell what their car weighs....

For reference

The LT1 is approx 80-90 pounds lighter then your average thirdgen engine, and the LS1 is 65-70 pounds lighter then your LT1

Is there a specific reason you are looking for actual numbers?? Prehaps we can help in other ways since weighing your entire car is not something that gets posted often
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Old Jun 11, 2004 | 07:08 PM
  #5  
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From: San Rafael, California
Car: 92 Camaro RS
Engine: 305
Transmission: 700R4
i was jsut curios what the weight gain/drop would be if i ended up doing the conversion. It looks like im just gunna have the motor i built (355) shiped to me, and ill look for a T-56 to swap in all at the same time.

is a 350 heavier or lighter than the 305 TBI

how do you go about moving the center of gravity, ect. i want the car to handle like its on rails. i have a lot of work to do first, but i just like to look in the long run...
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Old Jun 11, 2004 | 07:16 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Most Gen 1 motors will wiehg about the same, so your 305 TBI and 350 will be about identical. A 305 block is a hair heavier but not by much. Lowering your car is a great way to change the center of gravity.
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Old Jun 13, 2004 | 01:03 PM
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From: Hinton, Alberta. Canada
Car: 1985 Camaro Z28
Engine: Caprice LT1
Transmission: 4L60E
Axle/Gears: 3.23
85 Camaro Z28, Caprice Iron Head LT1, 4L60 E transmission, 3/4 tank of gas.

3380 pounds.
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Old Jun 16, 2004 | 03:34 PM
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Originally posted by Drastius
85 Camaro Z28, Caprice Iron Head LT1, 4L60 E transmission, 3/4 tank of gas.

3380 pounds.
W/driver or w/o?
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Old Jun 16, 2004 | 04:15 PM
  #9  
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
Originally posted by Drastius
85 Camaro Z28, Caprice Iron Head LT1, 4L60 E transmission, 3/4 tank of gas.

3380 pounds.
Nice that must mean mine must be lighter than that. Don't auto trannies weigh 145+ lbs. I also have aluminum heads so I must be in the 3200 range.
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Old Jun 16, 2004 | 06:55 PM
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From: Phoenix, AZ
Car: '82 Z28
Engine: 350HO
Transmission: M4
Originally posted by FLYNLOW92rs
Both the LT1 and LS1 weigh less then a SBC

SBC>LT1>LS1
LT1's and LS1's are SBC's

but anyway, LT1's wouldn't nessicarily weigh any less than a GENI SBC. there are plenty of GENI's that have aluminum heads, and in that case, the weight difference is probably none existant.
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Old Jun 17, 2004 | 03:10 PM
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From: Vancouver, BC, Canada
Originally posted by scottland
LT1's and LS1's are SBC's

but anyway, LT1's wouldn't nessicarily weigh any less than a GENI SBC. there are plenty of GENI's that have aluminum heads, and in that case, the weight difference is probably none existant.
The amount of aluminum headed FACTORY SBC 1's has got to be far far less then the amount of IRON headed ones, but basically you can look at it this way.

L98/LB9> LT1 > LS1

and that being all F-body ones, you throw in a B-body LT1 like me and you get ..... IRON Heads which almost negate any weight savings ..... basically Im saving a bit on the Intake vs my old iron LG4 intake.
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Old Jun 17, 2004 | 05:08 PM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Originally posted by pasky
Nice that must mean mine must be lighter than that. Don't auto trannies weigh 145+ lbs. I also have aluminum heads so I must be in the 3200 range.
T56's weigh about 138 alone.
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Old Jun 17, 2004 | 05:26 PM
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
I shoved it on a scaled here, was 123.4 lbs. Suck it.
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Old Jun 17, 2004 | 06:20 PM
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Originally posted by pasky
I shoved it on a scaled here, was 123.4 lbs. Suck it.
Sure you did, silly homo, you probably drained it for a few hours just to be able to claim it was lighter. Not to mention your scale is probably off
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Old Jun 17, 2004 | 06:23 PM
  #15  
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From: Phoenix, AZ
Car: '82 Z28
Engine: 350HO
Transmission: M4
who cares? its like 10 pounds difference, you could get almost that by not eating the whole day.
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Old Jun 17, 2004 | 06:42 PM
  #16  
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
Originally posted by Z28*****
Sure you did, silly homo, you probably drained it for a few hours just to be able to claim it was lighter. Not to mention your scale is probably off
Yea, 3.8 quarts of liquid is gonna push on 20 lbs. Then again, every scale in florida is the most accurate, hell every clock for that matter and the most important thing I forgot, your word is almighty.

EDIT: A 4L60E weighs about 200 #'s.

Last edited by pasky; Jun 17, 2004 at 07:50 PM.
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Old Jun 17, 2004 | 07:43 PM
  #17  
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
Just did some research, just about everywhere i check the weight of a T-56 comes out to 125 #'s.

BTW, think I found a picture of z28*****, maybe this is why yours weighed "138". Stop riding that shifter!!!
Attached Thumbnails LS1 - LT1 Swap Weights?-ricer.jpg  
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Old Jun 17, 2004 | 09:22 PM
  #18  
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From: Hinton, Alberta. Canada
Car: 1985 Camaro Z28
Engine: Caprice LT1
Transmission: 4L60E
Axle/Gears: 3.23
Yea 3380 without driver
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Old Jun 18, 2004 | 04:47 PM
  #19  
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
3296 shipping weight

1945 front
1351 rear

60/40 ratio in 82 but after a tank of gas and driver things could shift a bit


(just found rpo list today has the front/rear breakdown on it, compared it to my invoice "SW")

this is the weight with the lg4 and auto tranny and quite a few options
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Old Jun 18, 2004 | 05:08 PM
  #20  
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Just for reference, a typical SBC weighs around 500lbs.
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Old Jun 18, 2004 | 06:40 PM
  #21  
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Originally posted by scottland
LT1's and LS1's are SBC's
splitting hairs.....

I think 99.9% of the board was able to interpret what i was saying.....
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Old Jun 18, 2004 | 11:17 PM
  #22  
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From: under the hood
Car: 92 Z28 heritage
Engine: 5.0 TPI
Transmission: T-5
the pic of that guy riding that trans has me is the funniest thing I have seen in a while. And every post by pasky has me laughing my **** off.
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Old Jun 19, 2004 | 09:24 PM
  #23  
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
*shrug*, he is the type of guy to tell you what is best and its his way or the highway so he treats everyone as if they have a lower intellgence when its him with the I.Q. you can trip over, prove him wrong and he makes some dumbass excuse like the one you saw above about my scale being off .

Last edited by pasky; Jun 19, 2004 at 09:51 PM.
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Old Jun 20, 2004 | 02:17 PM
  #24  
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From: UofA(Tucson), AZ
Car: 92 Precision Red Firebird
Engine: v6->357 vortec xe262h rpm intake
Transmission: t5-> t56
Axle/Gears: 10bolt 3.42s
If an lt1 or ls1 was swaped into a v6 thirdgen would you need to replace the shocks?
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Old Jun 23, 2004 | 11:29 PM
  #25  
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Car: 1991 RS Camaro (Jet Black)
Engine: 95 383 CI (6.3) LT1
Transmission: 95 T-56
If thier worn. I'd be more worried about springs.
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Old Nov 29, 2004 | 10:46 AM
  #26  
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I am running a SCCA car with a Gen1 SBC , with aluminum intake,heads,water pump and underdrive billet pulleys.

and a muncie M-21 transmission with aluminum bellhousing.

I wonder If i could save some weight swapping this set up If i swap in a LS1 backed with a T-56.

I know the LS1 is lighter, and the T-56 is heavier, I dont want to run a muncie with a LS-1 .

Can someone tell me if there is any weight savings according to their experiences

Peter
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Old Nov 29, 2004 | 05:36 PM
  #27  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Peteracer
I am running a SCCA car with a Gen1 SBC , with aluminum intake,heads,water pump and underdrive billet pulleys.

and a muncie M-21 transmission with aluminum bellhousing.

I wonder If i could save some weight swapping this set up If i swap in a LS1 backed with a T-56.

I know the LS1 is lighter, and the T-56 is heavier, I dont want to run a muncie with a LS-1 .

Can someone tell me if there is any weight savings according to their experiences

Peter
An LS1 weighs 100lbs less then a aluminum headed Gen I or II motor. Even if the T56 leaves you with the same weight it will be much closer to the center of the car.
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