GM Performance Parts
It's a wonderful thing that General Motors is sinking its teeth so deeply into the high-performance market. A quick browse through the pages of the 2007 GMPPb catalog proves just how serious The General is about late-model performance. From its value-laden L92 cylinder heads to its high-strength engine internals and blocks (as well as turnkey crate motors), GMPP has it all. We're going to sample just a few of its offerings here.
| 5.3 HIGH-OUTPUT LONG-BLOCK |
| COMPANY: | GM Performance Parts |
| BLOCK: | 5.3L, iron, new |
| DISPLACEMENT: | 323ci (5.3L) |
| COMPRESSION RATIO: | 9.5:1 |
| CRANKSHAFT: | 3.622-inch, GM, nodular iron |
| RODS: | GM powdered metal steel |
| PISTONS: | 3.780-inch, GM, hypereutectic |
| RINGS: | GM |
| ROD BEARINGS: | GM |
| MAIN BEARINGS: | GM |
| CAM BEARINGS: | GM |
| BOLTS: | GM |
| HEADS: | GM aluminum, 1.89/1.55-inch valves |
| HEAD GASKETS: | GM |
| CAM: | GM hydraulic roller, 196/201 duration at .050, .467/.479-inch lift |
| LIFTERS: | GM |
| PUSHRODS: | GM |
| ROCKER ARMS: | GM, 1.7-ratio, investment cast, roller trunnion |
| VALVESPRINGS: | GM |
| INTAKE MANIFOLD: | no |
| THROTTLE BODY: | no |
| FUEL INJECTORS: | no |
| MAF: | no |
| WIRING HARNESS: | no |
| PCM: | no |
| CORE CHARGES: | no |
| WARRANTY: | 12 months, 12,000 miles |
| PRICE: | $2,899.00 |
| COMMENTS: | What separates this engine (PN 19165628) from a standard 5.3L is a custom GMPP cam and Grafal- coated pistons, bringing output to 332 hp and 352 ftlb (versus a standard 5.3L’s 295 hp and 325 ft-lb). This is a small-displacement powerhouse for economy and power on 87 octane. Reluctor wheel is 24X. (Price quoted is from Scoggin-Dickey Parts Center.) |