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SILVERADO COOLSIDE II - BIG BLOCK, BIG PERFORMANCE
Source: GM Press Release

LAS VEGAS - Chevy Trucks' launch of the all-new Silverado heavy-duty pickups has ignited a new interest in big-block VORTEC V8 power. The new 8100 VORTEC Big Block gas engine is in fact the most powerful gas engine available in a pickup. But from the factory, it's tuned for low-end grunt that makes these new trucks capable of pulling and hauling massive loads.

What if things were slightly different? Well, Silverado Coolside II has a different interpretation of hauling. "With Silverado Coolside II, our objective was to take the foundation of a Silverado pickup and our new Big Block engine and push the envelope for pickup performance to a new level," said John C. Farris Jr., Chevrolet Silverado assistant brand manager-marketing. "We believe this is the first hot rod installment of the new 8100 Big Block and based on the results Jon Moss achieved, probably not the last."

Silverado Coolside II's awesome power is derived from the first application of the 8.1-liter (nearly 500 cubic-inch) performance engine. The iron block 16-valve V8 engine develops a ground-shaking 575 horsepower at 5700 rpm and an awe-inspiring 605 lb-ft of torque at 4500 rpm. GM-built parts on this engine include the cylinder block assembly, the cast crankshaft with bearing journals nitrided, the rear main seal and aluminum Gen V/Gen VI cylinder heads, which are not stock for the 8100.

The big engine is mated to a heavy-duty, electronic, four-speed automatic transmission. Silverado Coolside II also features the first application of the New Venture Gear viscous coupling all-wheel-drive transfer case, providing sure-footed traction at all times. Helping to ensure quick and controlled stops is the Stillen front brake package, consisting of an AP Racing six-piston, fixed-position caliper; caliper mounting brackets; AP Racing 355 x 35.5 directionally vented rotors that are cross-drilled and slotted, as well as Metal Matrix™ brake pads with a 76.3 square-centimeter surface area.

The GM-developed rear brakes feature a single-piston, floating caliper and cross-drilled and slotted rotors. Four-wheel ABS is also included.

For a sportier appearance, Silverado Coolside II's height is three inches lower than the production model. Also enhancing the sporting character of this vehicle are Goodyear Eagle F1 GM 295/45 ZR 18-inch tires mounted on Budnik "Famosa" wheels.

Silverado Coolside II also features:

  • An all-steel hood with symmetrical scallops 
  • A unique pickup bed tonneau cover constructed from 5/8" honeycomb core aluminum 
  • Molded bed side rails 
  • An increased-height tailgate 
  • A molded front air dam with 2000 Tahoe Z71 fog lamps 
  • A molded rear pan with integral license plate and exhaust pockets.

The stepside pickup is finished in monochromatic black paint with multi-hued flames on the hood, fenders and tonneau cover. The black color theme is continued on the inside, with the instrument panel, console with mounted electric push button shift controls, and carpet all finished in monochromatic black. The seats and door trim are finished in black leather with red perforated leather inserts. The black and red leather-wrapped steering wheel completes the interior color scheme.

Silverado Coolside II Specifications

CONFIGURATION:
FRONT ENGINE, ALL WHEEL DRIVE (AWD) 
119 in WHEELBASE 
63.8 in FRONT / 64.9 in REAR TRACK 
4672 LBS TOTAL WEIGHT (ESTIMATED): 2962 LBS FRONT (63.4%) / 1710 LBS REAR (36.6%)

DRIVETRAIN:
IRON BLOCK / ALUMINUM HEAD 16 VALVE OHV V8 ENGINE 
PEAK TORQUE: 605 LB-FT @ 4500 RPM 
PEAK POWER: 575 HP @ 5700 RPM 
4L80HD-E 4-SPEED AUTOMATIC TRANSMISSION 
VISCOUS, FULLTIME ENGAGEMENT TRANSFER CASE 
SOLID REAR AXLE 
FRAME MOUNTED FRONT DIFFERENTIAL

CHASSIS:
INDEPENDENT, COIL SPRING SLA FRONT SUSPENSION 
HOTCHKIS DRIVE LEAF SRING REAR SUSPENSION 
FRONT DISC / REAR DRUM BRAKES WITH ABS

CYLINDER HEADS:
GM PERFORMANCE PARTS ALUMINUM GEN V/GEN VI (12363409) 
PORTED & POLISHED 
127 cc COMBUSTION CHAMBER VOLUME 
2.25" INTAKE, 1.88" EXHAUST VALVES 
CYLINDER HEAD BOLTS, 11mm x 7/16" (WHEEL TO WHEEL) 
CYLINDER HEAD GASKETS (#1047) (FELPRO)

VALVE TRAIN:
HYDRAULIC ROLLER CAMSHAFT (COMPETITION CAMS) 
230° DURATION x .540" LIFT INTAKE 
242° DURATION x .628" LIFT EXHAUST 
112° LOBE SEPARATION 
HYDRAULIC ROLLER FOLLOWERS (COMPETITION CAMS) 
PUSH RODS, ?" DIAMETER (TREND) 
ROCKER ARM STUDS (ARP) 
ALUMINUM ROLLER ROCKER ARMS (COMPETITION CAMS)

INDUCTION:
TWO-PIECE TUNED RUNNER INTAKE MANIFOLD ASSEMBLY (ACCEL) 
OVAL BORE THROTTLE BODY (ACCEL) 
FABRICATED DUAL AIR CLEANER SYSTEM

EXHAUST:
FABRICATED STAINLESS STEEL FOUR INTO ONE TUBULAR HEADERS, 2½" x 34" RUNNERS INTO 3" COLLECTERS (WHEEL to WHEEL) 
FABRICATED DUAL 3" EXHAUST STAINLESS STEEL SYSTEM COMPLETE TO REAR BUMPER WITH 2½" BALANCE TUBE
DUAL 304 SERIES 3" INLET AND OUTLET MUFFLERS (EDELBROCK)

TRANSMISSION:
GMPT 4L80-E FOUR-SPEED AUTOMATIC 
GEAR RATIOS : 1ST - 2.482 ; 2ND - 1.482 ; 3RD - 1.000 ; 4TH - .750

REAR AXLE:
GM OEM WITH 3.73:1 DRIVE RATIO 
LIMITED SLIP DIFFERENTIAL

FRONT AXLE:
GM OEM WITH 3.73:1 DRIVE RATIO

REAR DRIVESHAFT:
GM OEM 2500 SERIES SHORTENED TO 1060 mm

FRONT DRIVESHAFT:
GM OEM 1500 SERIES LENGTHENED TO 810 mm

WHEELS/TIRES:
"FAMOSA" WHEELS; 18" x 10" x 46mm OFFSET; 6 x 5½" BOLT CIRCLE (BUDNIK) 
EAGLE F1 GS 295/45ZR-18 TIRES (GOODYEAR)

STEERING:
INTERMEDIATE SHAFT ASSEMBLY (WHEEL TO WHEEL) WITH U-JOINTS AND MAIN SHAFT (BORGESON) 
GM OEM RECIRCULATING BALL STEERING BOX ASSEMBLY

BRAKES:
FRONT BRAKE PACKAGE (STILLEN) 
SIX-ISTON FIXED POSITION CALIPER (AP RACING) 
CALIPER MOUNTING BRACKETS 
355 x 35.5 DIRECTIONALY VENTED ROTORS, CROSS DRILLED AND SLOTTED (AP RACING) 
METAL MATRIX™ PADS, 76.3cm² SURFACE AREA 
BRAIDED STAINLESS OVERBRAID TEFLON LINED HIGH PRESSURE HOSES 
GM OEM REAR BRAKE PACKAGE 
SINGLE-PISTON FLOATING CALIPER 
280 x 25 SOLID ROTORS, CROSS DRILLED AND SLOTTED 
GM OEM MASTER CYLINDER 
GM OEM 2500 SERIES "HYDRABOOST" POWER ASSIST" FOR ENGINE PACKAGING CLEARANCE, PLUMBED WITH AEROQUIP -6 AQP HIGH PRESSURE HOSE & FITTINGS 
GM OEM ABS MODULE

EXTERIOR:
ALL STEEL HOOD WITH UNIQUE SYMMETRICAL SCALLOPS 
GM OEM 2000 AURORA DOOR HANDLES 
UNIQUE PICKUP BED TONNEAU COVER CONSTRUCTED FROM ?" HONEYCOMB CORE ALUMINUM 
UNIQUE, MOLDED BED SIDE RAILS 
INCREASED-HEIGHT TAILGATE 
UNIQUE, MOLDED FRONT AIR DAM WITH GM OEM 2000 TAHOE Z71 FOG LAMPS 
UNIQUE, MOLDED REAR ROLL PAN WITH INTEGRAL LICENSE PLATE AND EXHAUST POCKETS 
MONOCHROMATIC BLACK PAINT WITH MULTIHUED FLAMES ON HOOD, FENDERS AND TONNEAU COVER

INTERIOR:
BLACK I/P, CONSOLE AND DOOR PANELS 
BLACK CARPET 
BLACK LEATHER SEATS AND DOOR TRIM WITH RED PERFORATED LEATHER INSERTS 
BLACK AND RED LEATHER TRIMMED STEERING WHEEL 
CONSOLE MOUNTED WITH ELECTRIC PUSH BUTTON SHIFT CONTROL