Fifth Generation Pro Street Monte Carlo Concept |
 This mean, green machine may look something like a modern front-wheel-drive Monte Carlo, but looks can be deceiving. The Pro Street Monte Carlo concept car is a purpose-built rear-wheel-drive hot rod cobbled together mostly from Camaro/Firebird chassis components. It backs up its racy silhouette with a Chevy Motorsports Aluminum V8 that puts an eye-popping 467 horsepower and 458 ft.-lb. of torque to the pavement through a 6-speed stick shift, beefy driveline and special Goodyears. Chevy Specialty Vehicles went so far with this one that the aluminum V8 engine block had to be reworked to accept GM LT1 V8 engine mounts. Ignition comes by way of an MSD Blaster high-output coil triggered by a modified GM small-diameter HEI distributor. The entire powertrain is controlled by a specifically calibrated PROM chip doling out commands from inside a 1991 Corvette L98 electronic control module. An Edelbrock aluminum water pump circulates coolant through a Griffin aluminum crossflow radiator to keep the engine cool. There are also engine oil and power steering-fluid coolers. The front MacPherson struts were tossed in place of an upper/lower control arm suspension with specially valved Bilstein shock absorbers. Bringing up the rear is, obviously, a solid axle with a lengthened and reinforced torque arm. And this is one of few hot-rod developmental vehicles that has 4-wheel-disc antilock brakes. The 340mm-dia. front rotors are off a Corvette. The wheelbase has been stretched 3 in. toward the front to 111 in., and extra large fenders allow the giant wheels to increase track 4 in. to 63 in. Inside the Pro Street Monte Carlo are a single-hoop roll bar, a special high-reading speedometer and 8-cylinder tachometer, carbon-fiber accents and slightly modified leather seats. This car would not look out of place in a modern-day remake of the movie "American Graffiti." |
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| Body Style: 5-passenger, 2-door coupe |
| Engine: 406.6 cu.-in. (6.7-liter) GM Motorsports aluminum ohv V8, Part No. 10185075 Horsepower: 467 @ 6000 rpm Torque: 458 ft.-lb. @ 3500 rpm Bore: 4.155 in. (105.537mm) Stroke: 3.75 in. (95.25mm) Compression Ratio: 11.68:1 Ported cylinder heads with Trick Flow canted intake valve bores Trick Flow 2.02-in. stainless steel intake valves Trick Flow 1.6-in. stainless steel exhaust valves Trick Flow valve springs: 105 pounds closed, 370 pounds open Trick Flow retainers and keepers Crane aluminum roller rocker arms, 1.6:1 ratio Mr. Gasket chromed rocker covers modified for rocker arm clearance Erson hydraulic roller camshaft, intake: 226°duration x .550-in. lift, exhaust: 234°duration x .550-in. lift, 112° lobe centers Cloyes camshaft thrust button Speed Pro hydraulic roller followers Smith Brothers pushrods with oil-flow restrictors, lengthened .100 in. Trick Flow pushrod guide plates Callies 5140 steel billet crankshaft Crower forged steel connecting rods, 5.7-in.center-to-center, 2.1-in. crankpin Federal Mogul main (with 2/3 oil groove) and connecting rod bearings Wiseco forged flattop pistons Wiseco piston pins Speed Pro piston rings, top: 1/16-in. moly, middle: 1/16-in. cast, oil: 3/16-in. chrome-faced Cloyes roller timing set Edelbrock cast-aluminum front timing cover Moroso high-volume oil pump and 3/4-in. pickup, heavy-duty driveshaft Milodon windage tray Moroso 6-quart oil pan with baffling GM LT1 V8 intake manifold with ported runners, throttle body flange enlarged, modified for coolant crossover and standard distributor Arizona Speed & Marine dual 58mm throttle bores 1996 Pontiac Firebird WS6 air cleaner assembly with K&N filter Bosch 4.5 grams-per-second port fuel injectors 1995 Camaro LT1 fuel rail with modified fittings LT1 modified 50.75-psi fuel pressure regulator Bosch frame-mounted 50-psi fuel pump Kinsler high-flow fuel filter ATK 20-gal. fuel cell Aeroquip Push-Lok-8 fuel feed and return lines 1-7/8-in. stainless steel tubular exhaust headers with 3-in. collectors dual 3-in. stainless steel exhaust to the rear with Edelbrock mufflers. |
Transmission: Borg-Warner T56 6-speed manual, 1992 Camaro T5 bellhousing,
McCleod steel-faced aluminum flywheel,
McCleod dual-disc clutch assembly, McCleod annular hydraulic throwout bearing,
gear ratios:
FIRST 2.97
SECOND 2.07
THIRD 1.35
FOURTH 1.00
FIFTH 0.80
SIXTH 0.62:1 |
Drive: Dyno-Tech 3.5-in. x .083-in. wall steel tube driveshaft,
Dana-Spicer 1350 Series U-joints,
Dana 44 rear axle housing modified for ABS sensor, 3.54:1
Dana "Torque-Lok" differential modified for ABS reluctor wheel,
Strange Engineering axle shafts |
| Wheelbase: 111.0 in. |
| Track, f/r: 63.5/63.0 in. |
| Weight: 3424 pounds |
| Suspension, front: A-arms, coil-over-shocks, 1.25-in. hollow stabilizer bar |
| Suspension, rear: Solid axle, coil springs, Bilstein shock absorbers,3 trailing links, 0.75-in. solid stabilizer bar, panhard bar, boxed torque arm |
| Brakes: 4-wheel discs with ABS, Wilwood 6-piston front calipers |
| Wheels: Boyd's billet dune chromed 5-spoke, f: 17 x 9 in., r: 17 x 12.5 in. |
| Tires: Goodyear, f: 275/40ZR17, r: 335/35ZR17 |
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Special Thanks to Popular Mechanics.com |
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