Scott Miller knows it takes a truck to haul, so to his factory 355 small-block he's added both a supercharger and a dose of nitrous. With the supercharger, better breathing cylinder heads, and a high-lift cam (minus the funny stuff) the combo has produced over 500 horses and 500 lb-ft on the dyno. To feed those extra horses, he improved the fuel system with parts from Holley. What's especially fun is that on the track the 4,000-pound pickup stops the clocks in the low-12-second zone.
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| Scott Miller |
| '90 Silverado |
| Specs |
| Displacement | 355 ci |
| Block | Factory Chevy four-bolt main |
| Bore x Stroke | 4.030 x 3.48 inches |
| Compression | 8.5:1 |
| Rod | 5.71-inch Trick Flow I-beam |
| Induction |
| Injection | Holley 670 TBI |
| Camshaft Specs |
| Crane Cams hydraulic 240 Compucam |
| Duration @ 0.050 | 210/216 |
| Lobe separation | 114 |
| Cylinder heads |
| Trick Flow 175cc |
| Valve size | 1.94/1.50-inch |
| Rockers | Crane Gold (narrow body), 1.5:1 |
| Power Adder |
| Nitrous, 125hp wet shot, Whipple Supercharger 6lb boost |
| Drivetrain |
| Transmission | Chevy 4L80E |
| Converter | The Converter Shop 2600 Lockup converter |
| Rearend | '92 Chevy SS 454 factory 14-bolt |
| Gear | 4.10 w/traction lock |
| Rear rubber |
| P275/60R15 Mickey Thompson ET Street Radial |
| Numbers |
| Peak Horsepower | 511 (motor) |
| Peak Torque | 503 |
| Performance | 12.32 @ 116 mph (motor) |
| 60-foot | 1.76 |
This Nova may look like just another show car, but it packs some impressive power. Under the flaming flanks Chuck built a 406 small-block from a stock GM two-bolt main block and added AFR 210 cylinder heads, a hydraulic roller camshaft, a moderate amount of compression, and an adjustable NOS 150-horse kit. An MSD ignition system ignites the air/fuel charge. The package has been dragstrip-tested to power the X-body through the quarter-mile in the low-11-second range.
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| Chuck Immormino |
| '71 Nova |
| Specs |
| Displacement | 406 ci |
| Block | 400 GM two-bolt |
| Bore x Stroke | 4.155 x 3.75-inches |
| Compression | 10.5:1 |
| Rod | 5.70-inch |
| Induction |
| Carburetor | 750 Holley reworked by the Carb Shop to flow 830 cfm |
| Intake | Edelbrock Victor Jr. |
| Camshaft Specs |
| Comp Cams hydraulic roller |
| Valve lift | 0.540/0.562 inch |
| Duration @ 0.050 | 242/248 |
| Lobe separation | 110 installed on a 106 |
| Cylinder heads |
| AFR 210 |
| Valve size | 2.05/1.64-inch |
| Rockers | 1.5:1, Crane Rollers aluminum |
| Power Adder |
| NOS 150 kit |
| Drivetrain |
| Transmission | TH400, manual valve body built by Denny Savage |
| Rearend | 12-bolt, bearings, Moser 39-spline, Detroit locker, narrowed, mini-tubbed |
| Gears | 4.10:1 |
| Rear rubber |
| 29x13.50 Hoosier Quick Time Pro |
| Numbers |
| Peak Horsepower | 525 @ 6,000 rpm |
| Performance | 11.18 @ 128 mph |