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Fs: 2003 Silverado Ss


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For Sale: 2003 Silverado SS. Black, AWD, original owner – non smoker, GARAGED. Every factory option available for 2003, less On-Star and engine block heater, including but not limited to: Leather / heated 6-way power adjustable bucket seats with embroidered “SS” headrests ; AM/FM/XM 6 disk CD changer Bose stereo system; PW; PDL; PS; dual zone automatic climate control (A/C); auto dimming rear view mirror; power adjusting / folding mirrors with turn signal markers and perimeter lights; cruise control; full instrument DIC; leather wrapped tilt steering wheel with numerous control buttons; center console with portable ash tray (never used); dual key fobs and much more (see window sticker picture). The trailer hitch was removed for the roll pan however factory wiring is intact. The truck has just fewer than 50K on it as whole however the truck is heavily modified in which all new components were installed less than 5k miles ago unless noted. The truck is being sold as-is and includes MANY extras listed at the bottom of the page. Extremely well cared for, well documented, labor of love.




Modifications to the above platform include:


Cosmetic / body / brakes and more


Goodmark steel cowl hood, dual 408 emblems.

Gaylord Speedstur locking bed cover with x-2000 hinge system, carpeted

Konig No-Road wheels with Opal centers 20x10 wrapped in BFG KDW 305-50-20 tires

Carriage Works 5 piece black powdercoated billet grill

2005 black boarder tail lenses

Bedrug with bowtie logo

BSER fiberglass roll pan with functional plate lights

Silverstar HI/LO, amber turn and DLRs and brake / park

20% tint on all, less windshield

TA rear end girdle with ARP bearing cap studs and stainless hardware

ProStop cross drilled and slotted rotors

Hawk strip/street extreme duty pads

Epoxy painted calipers with brushed aluminum “SS” accents

Carbon fiber radiator cover

Billet fire extinguisher (HALON type)

3 position A-pillar gauge mount

Autometer wideband O2 meter with datalogger outputs - Phantom

Autometer fuel pressure gauge, electric with playback function – Phantom

Aeroforce Scan Gauge with custom “SS” display at power-up, mounted in overhead console




















Engine / accessories


408 CID - 11.5:1 static compression ratio, dyno’d 613HP and 545TQ on initial pull after assembly (no nitrous):

Brand new 6.0L Cast iron Block - Vat Block, Line Bore, Bore/Hone w/ TQ plate, precision balance rotating assembly, line hone etc.

Eagle forged 4.00” Stroker Crank shaft

Eagle 6.125” H-Beam Connecting Rod Set with upgraded ARP 2K rod bolts

Diamond Racing Forged Pistons (Flat Top with -4cc Valve Reliefs, 0.927 x 2.50 Wrist Pins)

Total Seal Ring Set (4.010" + 0.005", 1.5mm AP Stainless Top, 1.5mm Napier 2nd, 3mm oil)

Cam bearing set for LS2 Block

Clevite LS1 H-rod bearing set (for stroker applications)

Clevite LS1 Main bearing

ARP Main Stud kit for LS1/LS6

GM LS1 oil restrictor

GM LS1 Oil Galley Core Plug

GM LS1 Large Coolant Plug

GM Engine Block small coolant plug (LSx - based engines)

Precision Race Components Stage 3 ported LS6 Cylinder Heads (799 castings): 2.08/1.60 stainless steel valves, dual valve spring kit (good for .640 lift) with Titanium retainers, 64cc Combustion Chamber (untouched)

TSP cam: 248/254, .615"/.622", 113 LSA

Yella Terra Ultra Lite series non-adjustable 1.7:1 roller rocker arm set

TSP Chromemoly 7.40 pushrods

GM LS7 Lifter kit

Rollmaster double-roller LS1/LS6 Timing Set - standard bearing

GM 6.0L MLS head gaskets

ARP LS6 cylinder head stud kit (12 point)

GM LS1 Lifter Trays and associated bolts

GM cam retainer plate and associated bolts

ARP LS6 camshaft bolt kit

GM LS1/LS2 rear main seal housing gasket

GM LS1/LS2 Timing cover set

GM oil pump O-ring (LS6)

ARP balancer pulley bolt

GM MLS exhaust gaskets

GM Oil pan gasket

GM water pump gaskets

GM LSx rear main seal

GM LS1 front crank seal

GM engine block dowel pin set

TSP ported and shimmed LS6 oil pump

Front coolant pipe for LS6 Intake manifold

Rear coolant plugs for LS6 Intake manifold

LS1 rear cover

GM bolts for the valley cover, timing cover and rear cover (31 total)

F.A.S.T. 92mm TB LSx composite intake manifold (smoothed, painted and airbrushed)

LS2 throttle body (05+ vette style)

X-link throttle body adaptor

F.A.S.T. fuel rails

F.A.S.T. 38# injectors (flow rates rated at 42psi)

GM windage tray, 99+ trucks, with nuts

99-06 GM truck pan kit

GM oil pick-up tube 99+ truck

GM LS6 valley cover

TCI SFI-Approved Flex Plate with LS1 bolt pattern

Aeromotive boost/vac referenced FPR

Mezeire Electric water pump (anodized red)

Area51 idler relaction bracket

Custom CAI using Volant airbox with lexan cover

CSR catch can

Custom machined ABEAR valve / coil covers with engraving / anodizing

LS7 coils (new)

Taylor 409 race wires

NGK plugs

Modified PS bracket for FAST intake – black

DB electrical 200 amp overdriven alternator with 4awg fused main wire

Corvette C5 idler pulley with spacer

New truck crank pulley – good year Gatorback belt

Spliced injector adaptors

HPM – dual 16 inch SPAL electric fans with PCM control harness, manual override switch in cab

Optima Red Top battery

New starter

New engine mounts

Walbro fuel pumps

New primary Bosch O2 sensors








Transmission / drive shafts / Transfer case


Finish Line Transmissions Extreme duty 4L65E:

•300M billet input shaft

•300M billet output shaft

•FLT machined performance pump

•Media blast case, bell housing, and tail housing to restore a new aluminum finish

•FLT sleeved input drum

•FLT (billet 6061 aluminum) overrun piston

•FLT beast shell kit w/bearing kit

•GM 5 pinion input carrier

•GM 5 pinion reaction carrier

•Bearing style reaction shaft

•New reverse input drum

•Alto wide 2-4 carbon lined band with reinforced anchor

•8 B/W hi-energy clutches w/koleen steels in 3-4 clutch

•Extra Wide Heavy Duty double caged 29 element sprag

•4L65 low roller clutch

•Transgo HD-2 shift kit

•Sonnex super hold 2nd servo

•Sonnax super hold 4th servo

•Bushing kit

•New solenoids

•New Internal wire harness

•New GM Spacer plate

•B/W clutches

•Seal & gasket kit

•Filter (C5 vette)

•GM deep pan (C5 Corvette pan)

•Updated aluminum accumulator pistons

•FLT prepped valve body w/ HD 2-3 shift valve modification

•Set end play to FLT specs

• -6AN Case cooler fittings


Truecool external transmission cooler (40k GVW)

-6AN transmission cooler lines

NEAPCO extreme duty u-joints (four)

High speed balanced both shafts, painted front shaft

New GM transfer case chain

Autotrack II t-case fluid, Mobil 1 in rear and front diff

Precision Industries Vigilante 4200 stall 9.5” multi disk lock up torque converter with ARP bolts




Nitrous (2 kits)


Nitrous outlet custom direct port nitrous system, 100-400HP

Dedicated fuel system including 1 gal fuel cell, Walbro fuel pump, Aeromotive adjustable FPR, -6 lines / fittings, in-line fuel filter and FPSS

Dry kit at filter, 50-200HP adjustable

Twin 10lb bottles mounted in the bed with billet quick release adjustable mounting brackets

Two in-line nitrous filters and dual -6 nitrous feed lines

Remote bottle opener

Bottle heater

Two bottle pressure gauges

Two purge systems

All wiring and relays for both kits installed

Full array of jets for both kits ($500.00 in jets alone)

Switch panel for both kits, both purge systems and dedicated fuel system

Trick performance P-gauge (progressive ramp, window, lock-out, N2O pressure, AFR kill etc.)

Nitrous Outlet controller (window switch, gear lock-out, throttle switch etc.)












Bellenger tri-Y, 1 7/8 jet hot coated headers

Dual hollow 3” catalytic converters (non-functional)

True dual 3” 316 stainless exhaust piping (custom)

3” x-pipe

Dual stainless steel Magnalflow mufflers

Side swept before passenger rear tire exhaust exit

Dual walled 3.5” 304 stainless steel exhaust tips








Complete tune performed by myself using HPTuners and the Autometer Wideband. It is currently using a MAF tune with an OL idle however can give an OLSD tune if so desired. I recommend purchasing HPTuners as you will want to tweek to your taste and if you are going to fire off the nitrous, you will need to flash new tunes.



Extra’s at additional cost:


1. Four 16in 2002 aluminum Silverado wheels / center caps / lug nuts with M&H drag radials mounted and balanced.

2. Roughly 50 spark plugs in varying heat range (all NGK).

3. Your next oil change including filter.

4. Two FULL nitrous bottles (will empty if truck is to be shipped).




The truck is always garaged and hasn’t seen rain in years. It saw snow once in 2004. No rust on the body ANYWHERE. No accidents. Frame and undercarriage is well maintained as I painted all exposed metal. Interior is a 9/10 in my opinion only because it isn’t a brand new truck. Seats have been WELL cared for along with the dash and carpet. This is not a show truck however cleans up very nicely and can be confused for one at shows. There is a small nickel sized dent in the rear passenger side door that can be easily removed with a paintless dent removal kit. I have just been lazy as it is barely noticeable. There are a few very minor, almost invisible paint imperfections from typical driving hazards.


This is not a typical daily driver as a big cammed, high stall converter truck takes some getting used to. The ideal owner will use this truck as a weekend toy for cruise night and showing off a little. I do not recommend city driving or any type of towing / hauling. A cam and converter change will make this truck a great daily driver if one should desire.


The truck did see some track time and turned a best naturally aspirated time of 12.4 @ 105 with open headers and no weight reduction. With a 200ish shot of nitrous, it ran a best of 10.86 @ 128 with open headers and drag radials and some weight reduction. There is a lot of room for improvement.


The only needed item for this truck, in my opinion, is a hydroboost brake set-up. With the low vacuum the big cam generates at low RPM, braking is hampered only at low RPM. With good vacuum (higher RPM) the braking is fine.


The truck WILL PASS an OBDII plug-in inspection and visual as all EVAP and emissions controls are on and functional with the exception of hollow catalytic converters. I have serious doubts it will pass a sniffer if your state still does this method. The truck just passed PA State Emissions and Safety inspection last month and is good for a year in PA.


Asking $27,900 as it sits in the pictures. WITHOUT ALL of the nitrous it is yours for $23,500 FIRM. This will include a brand new FAST 92 intake Title is in hand for a fast transaction.


The modifications alone total more than the asking price. You can buy the truck, part it out and slap in a junkyard LQ9/65e and MAKE MONEY.


E-mail – krambo[email protected], or PM through this site. Thank you for looking!

Edited by Krambo
price update (see edit history)
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