McLovin1181

Super old thread I know, but I figured I'd drop everything I've weighted so far
T-top bags=3.5lbs
Spare tire=27.5lbs
Scissor Jack=8.5lbs
Grey hatch plastic cover=2lbs
2x glass T-top=32.5lbs
Fuse plastic=1lbs
Older Battery=31.5lbs
Braille G30 Lithium battery:5.5lbs
Braille G30 terminals+composite mount:2lbs
Windshield (full tank) wiper fluid= 2lbs
Radio=3lb 6.2oz
2x front Speakers=1lb 10oz
2x rear speakers=4lb 2.5oz
4x hub caps=1lb 2oz
Cigarette lighter=1oz
Radio install bracket=12oz
10 bolt axle 2.73 open diff+drums and brake lines with gear oil=192lbs
23mm sway bar+ mounts=12lbs
UMI LCA=5.2lbz each
UBE ALU LCA+bushings=2lbs 8oz each
Hot Part aluminum LCA=2.5lb each
Aluminum Panhard Bar+bolts=4.6lbs
U.B.E Panhard bar+bushings=6.6lbs
UMI Poly LCA=3.8lbs
UMI Poly+roto Panhard bar=6.2lbs
U.B.E LCA pair+bushings=
KYB gas-adjust shock=3.4lbs
UMI rear weight Jack=4.3lbs
UMI front weight jack=5lbs 14oz
Rear end links pair=1.1lbs
Landrum 400lb 5.0in 10.5in long spring=6.7lbs
Landrum 200lb 5.0in 10.5in long spring=4.9lbs
Landrum 400lb 5.0in 8in long spring=3.95lbs
Hyperco 7in 2.25in 350lb spring=1lb 16oz
True track LSD for 10 bolt 7.625=21.5lbs
Open OEM diff=22lbs
HotPart torque arm=22.5lbs
Old torque arm=11lbs
LCA relocation Brackets=5.5lbs
16in rear rim+245/50r16=50lbs
WELD Racing S71 18x11+295/30r18 A052 Race tires=50.1Lbs
Stock gas tank+pump+cap=24.5lbs
Iron drum brakes each=15.5lbs
Stock axle shaft each=15lbs
Sock steel 2.5in OD driveshaft=15.5lbs
3.0in OD Aluminum Driveshaft=10lbs
All brake drum Mic parts=14lbs
Koni rear yellows=5.5lbs
Drums+Misc brake parts=45lbs
Aluminum difff cover no bolts=4.25lbs
Cheap stamped diff cover=2.5lbs
Empty Axle housing:74lbs
6in wicker bill spoiler+bolts:4lbs
OEM 1992 Plastic spoiler center section:4lbs
New steering catch/overflow:1lb 3oz
Titanium strut tower bolts: 15 grams
Old strut tower bolts: 20 grams
10in Wicker Bill: 6.5lbs no hardware
1x Splitter rod: 5.45oz(5x=1.7Lbs)
2x aluminum 1/2in spacers:2lbs 4oz
2x steel 0.2 spacers:2lbs 5oz
2x 0.25 Aluminum spacers:1lb 0.7oz
Founders Coilover Mounts top and bottom+bolts: 5lbs 9.75 Oz
Russel Stainless Lines=0.8lbsStock Catalytic Converter=15.5lbsCat Delete Pipe=3.3lbsOld 92 RS steering wheel=4lbs 9ozGrant wheel+ horn=2lbs 14ozAirbag=3lbs 14oz34mm hollow factory Sway bar=13.5lbs35mm DSE Sway bar=13.5lbsDSE bar= 1.375in bushing (5356)DSE end links=1.1lbsDSE bushings:0.8lbsDSE bar:30in center width 14.5in arm lenghtRod-end (4) Sway Bar Links:3.75lbsStock (4) end links=2.3lbsTDS wonder bar=3.75lbsDSE wonder bar=7lbsOld OEM sway bar/idler chassis mounts=2.75lbsDSE strut tower brace=8lbs20x Lug nuts:1.5lbsDSE 25mm rear sway bar: 7lbsDSE end links: 1lb 2ozDSE bushing+mounts: 3lbs 2ozDSE bar locking collars:6.5ozTotal rear 25mm bar:11lb 10.5ozUMI Race bump steer kit=1lb 4.5oz each13in StopTech Rotors= 20.5lbs eachMod spindle+Billet ALU hub=17.5lbs each6 pot Wilwood FSL=6.5lbsOld RS brake caliper=8.5lbsOld spindle+hub+lug nuts=33lbsA-arm Delrin bushings+QA1 ball joint=16lbs
Ground Control Koni strut=8lbsNew spindle+ 13in rotor=37lbsGrant wheel:1lb 14oz (1.875lb)Grant adaptor+bolts=14.5oz (0.9lbs)Aluminum horn button:6oz (0.3lb)Old steering wheel:4lbs 9oz (4.562lb)Air bag:3lb 14oz (3.875lb)Stock prop valve:11oz (0.687lb)Stock master cly:2lb 11oz (2.685lb)Wilwood prop valve:10.8oz (0.675lb)4th gen master:1lb 10oz (1.6lb)4th gen Booster: 9lbs 6oz3rd gen booster: 9lbs 11ozOld Hatch hinges:4.6 ozNew Hatch hinges:3.3 ozOld cut bump stops:6.8ozNew UMI bump stops:7.3ozTrackSpec louvers: 3.4lbs20x Gorilla Acorn lug nuts:1lb 1oz2x 5/8in spacer+3d plastic: 2lb 10ozFactory dash pad: 9.2 lbsGC strut insert empty:3lbs 9.3ozKoni 8611-1259 insert: 4lbs 6ozStrut Bumper/Bump stop: 0.9ozBillet hatch hinges 2x:5.8ozOld door handles 2x: 14.2ozReinforced steering stops 2x: 1lb 5ozPoly Trans Mount + hardware: 1lbs 11ozOld rubber trans mount: 1lb 6ozSPARCO seat+sliders: 22lbsOld driver seat+sliders: 34.6lbsPlanted Seat mount: 7.4lbsSparco Sliders 2x: 4lbs 14ozTrunk beauty cover: 4.2Lbs Penske 8300 coilovers+brackets: 19.6lbs
Weight jack+Koni 2x total:32.6lbs
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​​​2001 LS1: 405lbs
without AC pump/BracketNo starterNo alternator/BracketFactory F+Body cast exhaust manifoldsWith air injection tubes LS related weights:Truck 6.0L 140Amp alternator: 11lbs 15oz
F-Body 106Amp Alternator:11lbs 5oz
F-body cast exhaust manifolds: 29lbs
F-body starter: 8lbs 5.5oz
ARP starter bolts: 7.5oz
LS6 intake weight:10lb 1oz
LS1 TB: 2lbs 2.5oz
Old LS1 harmonic damper: 10lbs 1oz
ATI damper total: 9lbs 0.6Oz
ATI AC pully only: 1lb 3.1oz
1 3/4 headers 25.2lbs with bungs
T56 aluminum bellhousing:8.2lbs
T56 Magnum-F: 126lbs dry
4qts Tremec T-56 oil: 8lbs 6oz
LS7 aluminum flywheel:16lbs
LS7 clutch bolts:12oz
LS7 clutch plate+clutch: 32lb 9.5oz
LS1 fans no wiring: 12.2lbs
Champion radiator no ports:5lbs
Manual brake kit: 1lb 7.5oz
Crank cover plate:2lbs 6oz
Timing cover (no sensor) gen4: 2lbs 9oz
Timing cover gen3: 1lb 15oz
Gen 4 cam sensor: 6oz
Spark plugs heat Shields: 6oz
ICT billet steam port: 4oz
Assembled 241 head(1x):23.8lbs
ICT billet oil pan plug:1oz
ICT billet pick up tube brace: 1oz
ICT billet alternator bracket: 2lb 2oz
PCV to -10 fitting: 1oz
ARP damper bolt: 1lb 0.5oz
OEM damper bolt: 9oz
Stock windage tray: 2lbs 3.5oz
Improved racing windage tray: 1lb
Improved racing crank scraper: 1lb 4oz
T-56 throwout bearing+bleeder: 2lb
DSE fuel tank trap door: 4lbs 3oz
Factory Head bolt set: 5lbs 7oz
ARP head bolt set: 5lbs 14oz
Stock PS pump: 6lbs 12oz
Stock oil pan tray: 2lbs 4.5oz
Improved racing pan baffling: 1lb 2oz
Stock LS1 Flex plate: 4.8lbs
LS1 oilpan+baffle+gasket:14lbs
Tick 4th gen Clutch master Cly: 1lb 14oz
Holley T56 K-member+Bolts+plates:11lbs


I'll add what my stock 305TBI weights when I finish my swap

LB9GTA

iTrader: (1)

Another weight reduction to add

I bought a used World Products Motown aftermarket SBC block
It already had the LSM CNC block lightening package on it (came from a car used in dirt track racing)
I know it's not a direct comparison, but I weighed a stock block sbc compared to my new Motown block
It saved about 25lbs.
http://www.lsmeng.com/Block-Lightening.html
The block looks amazing. Steel is CNC'd out of almost any place you could think of!
Mine still has the side motor mounts, but that area could have been shaved as well

McLovin1181

Old thread is old.
but here's some LS vs 305tbi weights.
2001 LS1: 416 lbs
Fully dressed+wiring harness (no ECU)No smog equipmentNo AC compressor or mount.
1 3/4 stainless long tube headers
1992 305 TBI: 584lbs
Complete with wiring harness(no ECU)
factory exhaust manifolds+Smog crap
With AC ex ex.

About 150lb difference when subtracting the AC compressor weight. Front suspension instantly went to FULL rebound when the 305 TBI was removed. Had to lower my weights jacks to the lowest setting to avoid putting stress on my expensive KONI 8611 race struts.


584lbs 305 TBI 1992

2001 LS1: 416 lbs

mw66nova

iTrader: (13)

If you're not doing this to your bolts yet, you still have work to do

mw66nova

iTrader: (13)

That's baller status right there. i want to send my intake back to CID for similar treatment.

MikeJR1991

McLovin1181

It always drives me nuts when I see SAE bolts with threads inside mounting holes.
I work in aerospace, and threads inside holes is a big no-no.

McLovin1181

Turns out a T56 Magnum-F swap isn't much lighter than a 700r4.

700R4 weightssome fluid still inside converter)700r4+converter+some fluid:-179lbsShifter lock cable:-11.5ozShift lever assy:-2lbs 7.5ozShift cable:-12.5 ozCooler lines:1lb 3oz.Converter cover:-11ozDipstick tube:-10ozTV cable:-3ozFlex plate:-5lbs10qt of ATF:20lbs=211lbs approx. T-56 Magnum-F weight:T56 Magnum-F dry:126lbsLS7 clutch+aluminum flywheel:47lbsSlave/Throw out bearing:2lbsAluminum LS Bellhousing:8lbs4qt fluid:8lbsCar chassis cut out:---3lbsShifter ****/lever:2lbs=190lbs approx


the larger spline t56 Mag-F Yoke is probably going to weigh a tad more than the stock smaller 700r4 yoke as well.

McLovin1181

took apart most of my car. weighted everything.
hopefully the website doesn't mess up my post like before.Stock 3rd gen radiator overflow tank+cap+bolt: 1 lb 9 oz

700r4 pan + gasket: 5lb 4 oz

3rd gen air-dam no bolts:3 lbs 3 oz

3rd gen stock single radiator fan + mount: 8 lbs

3rd gen radiator + cap:9lbs

steering cooler radiator+lines+filter:1lb 10.5 oz

3rd gen steering cooler lines:1lb 1.5 oz

Stock windshield wiper tank: 1lb 3 oz

305 TBI CAI: 8lbs

Stock charcoal canister+ line: 2lbs 3oz

Vacuum res tank: 8.5 oz

Cruise control + lines: 2lbs 3 oz

Astro steering shaft

AC small line; 1lb 8.5 oz

Radiator mount rubber: 6 oz

AC solid line: 7 oz

AC condenser radiator: 4lbs 8oz

AC canister+ mount: 2lbs 6 oz

Heater valve+ hoses: 2lbs

Under driver dash panel: 4lbs 13 oz

4th gen booster+bolts: 9lbs 8.75oz

700r4 K-member+bolts: 3lbs 5 oz

700r4 poly mount+bolts: 1lb 11 oz

700r4 torque arm mount: 1lb 14 oz

700r4 exhaust hanger mount: 1lb 14oz

700r4 converter cover: 11 oz

700r4 dip stock tube 10 oz

700r4 TV cable: 3 oz

700r4 TV cable length: 36in face to face

700r4 TV cable firewall slack: 6.25in

Under hood light+bracket: 3 oz

Stock hood hinges+ bolts: 8lbs 1 oz

Stock hood hinges: 6lbs 10 oz
2x Billet hood hinges+shocks: 4lbs 9oz

Air deflector U shaped plastic under front: 1lb 15.5 oz

Random plastic panels under front: 11.5 oz

Stock hood latch+bolts: 3lbs 3 oz

Stock RS flat hood+front spring+latch: 64lbs

Front airbag crash sensor+bolts: 11 oz

Front airbag crash sensor metal bracket: 7 oz

Bumper support bracket front by hood latch: 8 oz

RS front grill+screws: 1lb 7.5 oz

3d printed Z28 grill, no screws or glue/paint: 1lb 10.5oz

2.

front turn signals: 1lb 2.5oz

side running lights+mounts no bulb: 3.5oz

LED H4 housing+bolts+mounts: 2lbs

Old sealed high beams+screws+mounts:2lbs 4oz

Stock Horns 2x: 2lbs

Front plastic bumper+headlight bar+chin splitter: 27.7lbs

Fender+bolts driver: 11lbs 8 oz

Fender+bolts pass: 13lbs 5 oz

Radio antenna: 13.5 oz

305 TBI ECU: 2lbs 6 oz

Crash bar+honey comb+bolts: 27lbs 9.5 oz

Fender support rods 2x: 8 oz

Front air ducts+push pins: 1lb 11 oz

X-Bar support front radiator: 1lb 8oz

305 exhaust Y pipe+Cat delete pipe: 13lbs 13oz

700r4 cooler lines: 1lb 3 oz

HVAC blower motor: 3lbs 5.5oz

305 TBI MAP sensor+mount+bolts: 5oz

305 TBI SMOG pump: 6lbs 14 oz

DSe A-Arm 1x all stock: 14lbs 9.5 oz

DSE bump stop: 3 oz
DSE A-Arm end links: 1lb 6.5 oz
2x DSE A-arms+ end links+Steering stop: 30lbs 6.5 oz

1x DSE A-arm+endlink+steering stop:15lbs 3 oz

Stock Driver side A-arm +endlink+steering stop: 17lbs
Stock passenger side A-arm+endlink: 17lbs 9.5 oz

brake duct turn signels:1lb 4oz

Lukes heater box: 5lbs 5 oz

305 TBI fully assembled+harness: 587lbs

305 fuel hose to engine: 11oz

Driver wiper arm: 13.5 oz

Passenger wiper arm: 14 oz

Wiper hoses: 3.5 oz

Cowl plastic mesh: 6.5 oz

3rd gen wiper motor+bolts: 4lbs 9 oz

305 TBI throttle cable: 3.5 oz

Hood latch cable+mechanism: 15 oz

Cruise control wires+hose: 13 oz

Heater steel pipe: 1lb 3 oz

AC evaporator radiator: 5lbs

HVAC box: 4lbs 8 oz

3.

305 fuel filter holder+screw: 5 oz

Gas tank heat shield: 3lbs 3 oz

Exhaust pipe heat shields: 10.5 oz

Gas tank filler neck cover plastic+screws: 10.5oz

Founders torque arm+mount+bolts: 24lbs 3 oz

Complete stock fuel lines+EVAP+brake lines: 4lbs 9 oz

Factory fuel tank+lines no cap: 24lbs 6 oz

Triangle brace drivers side charcoal canister: 1lb

Support rod driver side EVAP area: 4 oz

700r4 shifter ****: 4 oz

700r4 shifter bezel: 13.5 oz

1LE radio delete plate: 2 oz

Radio+HVAC cover panel: 3.5 oz

Grant wheel: 1lb 14 oz

Billet horn button: 5.5 oz

Under steering column brace: 5.5 oz

Door+key buzzer: 2.5 oz

1992 steering column with grant adaptor: 16lbs 8 oz

700r4+converter+torque arm mount+some fluid: 179lbs

Stock automatic pedal box: 3lbs 12 oz

Manual pedal box: 6lbs 5 oz

Driver side door still plastic: 13 oz

Center console top: 4lbs 11 oz

Center console body: 5lbs 10 oz

700r4 shift cable: 12.5 oz

700r4 shift lever assembly: 2lbs 7.5 oz

Center console crash sensor: 10 oz

Below AC crash sensor: 8 oz

Airbag yellow plug: 1 oz

700r4 shift lock cable thing: 11.5 oz

Passenger seat: 34lbs 8 oz

4.

DSE A-Arm end links: 1lb 6.5 oz
3x BAER 2 Psi valves+2 mounts: 3.5 oz

2x Denso 234-4025 O2 sensors: 7 oz

2x stainless steel V-bands: 2lbs 5 oz

Aerocatch+hardware: 12.5 oz

Dakota Digital gauges alone: 3lbs

Holley clamshell LS mounts+bolts: 4lbs 4oz

2x Holley Poly motor mount bushings: 3lbs 3.5oz

305TBI engine mounts+bolts: 4lbs 13.5 oz

LS1 ECU: 3lbs 13oz

2x QA1 extended ball joints: 3lbs 8 oz

5/8 Bump steer bolts: 2lbs 1 oz

Aeromotive fuel regulator+fittings+filter: 2lbs

6x heater to O-Ring AN fittings: 6 oz

LS1 Lokar throttle cable: 4 oz

Rear seat bottom cushion 1x: 4lbs
Pass rear seat top: 11lbs 4 oz

Driver rear seat top: 11lb 6 oz

Rear seatbelt pass side: 3lbs 7.5 oz

Rear seatbelt driver side: lbs 6.5oz

All female seatbelt ends+bolts: 2lbs 5 oz
Rear set big hex bolt mount for seal latches: 5.5 oz

2x rear speaker boxes: 1 lb 12oz

Rear T-top bag holder hold downs: 3 oz

2x Billet hood hinges+shocks: 4lbs 9oz
Rear carpet: 18lbs

Main car carpet: 23 lbs
Cruise control computer module: 3.5 oz

Flocked dash pad: 11lbs 3 oz

Airbag control computer module: 1lb 5 oz

Dome light: 1.5 oz

Headliner: 3lbs 13 oz

Passenger front seatbelt: 3lbs 12 oz

5.

305 gas pedal: 1lb 2 oz

2x Founders strut mounts+braces: 11lb 3 oz

2x Bump steer spacers: 3.6 oz

All steering links Inner+outer+center+idler+pitman arm: 15lbs 6.5 oz

Aluminum bump steer hex rods+rod ends: 1lb 12 oz
steering box alone no pitman arm: 27lbs 6.5 oz

Triangle K-member supports: 2lbs 14 oz

Stock spindle alone+brake caliper adaptor: 2lbs 4.5 oz

Stock Driver side A-arm +endlink+steering stop: 17lbs

1x Aluminum BBU hub+3.5in ARP+bearings no castle nut/washer: 4lbs 15oz

Stock passenger side A-arm+endlink: 17lbs 9.5 oz

2x Front brake line brackets: 7.5 oz

305TBI engine mounts+bolts: 4lbs 13.5 oz

Stock K-member only: 43lbs

LB9GTA

iTrader: (1)

Has anyone cut the spare tire bracket out of the rear passenger side?
Is that structural?

soloc4

Yes.
No.

LB9GTA

iTrader: (1)

How many lbs of weight savings?

LB9GTA

iTrader: (1)

3lbs savings. Less than I thought.