Description
LSX454 Crate Engine
| Technical Specifications: LSX454 (19417357) | |
|---|---|
| Brand | Chevrolet Performance |
| Horsepower | 627 HP @ 6300 RPM |
| Torque | 586 lb-ft @ 5100 RPM |
| Compression Ratio | 11.0:1 |
| Bore | 4.185 in |
| Stroke | 4.125 in |
| Displacement | 7.4L |
| Crankshaft | 4340 Forged Steel, 8-Bolt Flange |
| Block | LSX cast-iron with 6-bolt, cross-bolted main caps |
| Camshaft Type | OEM Type Hydraulic Roller |
| Valve Lift (Intake/Exhaust) | .635" / .635" |
| Dur. @ 0.050" | 236°/246° |
| Cylinder Heads | LSX-LS7 Port Aluminum, 6-Bolt Attachment |
| Chamber Volume | 70cc |
| Valves | 2.20"/1.61" |
| Intake Pattern | LS7 Rectangular Port |
With the LSX Bowtie block, we’ve built a 21st century 454 with the latest technology. The LSX454 uses an all-forged, super tough rotating assembly and it is topped off with LS7 style LSX 6-bolt cylinder heads. Orange powder coated valve covers with black "LSX 454" are standard.
-The LSX454 valve covers do not include provisions for mounting ignition coil brackets. Aftermarket or custom relocation brackets must be obtained.
-It also includes an 8-bolt crankshaft flange that may require an adapter for use with some transmissions.
-Intake manifold is not included. If you can source one, you can use LSX-LS7 single plane carbureted intake manifold P/N 19244033, but it has been discontinued by GM. Otherwise, you can run a Holley Hi-Ram if you have clearance using the 105mm LS7 Hi-Ram, or you can use an 103mm MSD Atomic LS7 Intake.
Details
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