Chevrolet Performance LS3/430 Crate Engine

| Tech Specs | |
|---|---|
| Part Number: | 19434636 |
| Horse Power: | 430 hp @ 5,900 rpm |
| Torque: | 425 lb.-ft. @4,600 rpm |
| Engine Type: | LS-Series Gen IV Small-Block V8 |
| Displacement (cu in): | 376 (6.2L) |
| Bore X Stroke (in): | 4.065 x 3.622 (103.25 x 92mm) |
| Block: | Cast aluminum with 6-bolt, cross-bolted main caps |
| Crankshaft: | Nodular iron |
| Connecting Rods: | Powder metal |
| Pistons: | Hypereutectic aluminum |
| Camshaft Type: | Hydraulic roller |
| Valve Lift (in): | 0.551 intake / 0.522 exhaust |
| Camshaft Duration (@ 0.050 in): | 204° intake / 211° exhaust |
| Cylinder Heads: | Aluminum L92-style port, as cast with 68cc chambers |
| Valve Size (in): | 2.165 intake / 1.590 exhaust |
| Compression Ratio: | 10.7:1 |
| Rocker Arms (intake): | Investment-cast, roller trunnion |
| Rocker Arms (exhaust) | Investment-cast, roller trunnion |
| Rocker Arm Ratio: | 1.7:1 |
| Recommended Fuel: | Premium unleaded |
| Maximum Recommended RPM: | 6,600 |
| Reluctor Wheel: | 58x |
| Balanced: | Internal |


