LS364/450HP - Gen III 6.0L 24x Long Block
Part Number: 19434650Suggested Retail: $9163.61
LS364/450 Chevrolet Performance LS-Series Crate Engine 19434650
452hp @ 5,600 rpm
441 lb.-ft. @ 4,800 rpm
The budget performer of the LS family!
Chevrolet Performance engineers have developed the LS364/450 6.0L as a value-driven foundation for builders and enthusiasts looking to give their earlier LS-powered vehicles a high-performance shot in the arm.
Starting with a strong, economical iron cylinder block and durable rotating
assembly, it features the high-lift LS6 camshaft and deep-breathing LS3
aluminum cylinder heads. It’s a strong combination that provides exceptional
horsepower and a broad torque band. It is also fuel injection-capable, using
production-based components offered in this catalog. Additionally, the
LS364/450 is designed with the early-style 24X crankshaft and 1X camshaft
sensors, enabling easy retro-fit installation in early LS-powered vehicles.
We offer the LS364/450 exclusively as a long-block assembly, without the
induction system, ignition system or front-end accessory drive system,
allowing builders to transfer components from their early LS-powered vehicle
or complete a custom build with the components of their choice. An intake
manifold that matches the LS3/L92-style rectangular intake ports is required.
Chevrolet Performance LS364/450 Crate Engine Installation Notes
- Assembly does not include any electronics
- Engine is compatible with a vehicle’s existing Gen III controller, but tuning is required
- Includes LQ9 oil pan
- Requires intake manifold matched to LS3- or L92-style rectangular intake ports
- LS3 or L96 production intake manifolds can be used, but require an aftermarket adapter plate for use with early LS three-bolt throttle bodies
- Not intended for marine applications
Mobil 1 is the recommended engine oil for all Chevrolet Performance Engines
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty, whichever comes first. See your GM dealer for details.
Chevrolet Performance does not utilize any used or remanufactured parts in this crate engine, except for the starter, alternator and power steering pump
This part is intended for competition use only. See page 2 of catalog for complete details
| TECH SPECS | Part Number: 19434650 |
| Engine Type: | Performance LQ9 long block |
| Displacement (cu in): | 364 cu in (6.0L) |
| Bore x Stroke (in): | 4.000 x 3.622 in (101.6 x 92 mm) |
| Block: | Cast iron with 6-bolt block, cross-bolted main caps |
| Crankshaft: | Nodular iron |
| Connecting Rods: | Powdered metal |
| Pistons: | Hypereutectic aluminum |
| Camshaft Type (P/N 12565308): | LS6 hydraulic roller |
| Valve Lift (in): | 0.550 intake / 0.550 exhaust |
| Camshaft Duration (@.050 in): | 204º intake / 218º exhaust |
| Cylinder Heads: | LS3 rectangular port; aluminum, as-cast with 68cc chambers |
| Valve Size (in): | 2.165 intake (hollow stem) 1.590 exhaust (solid stem) |
| Compression Ratio: | 10.3:1 (nominal) |
| Rocker Arms: | Investment-cast, roller bearing trunnion |
| Rocker Arm Ratio: | 1.7:1 |
| Recommended Fuel: | Premium pump |
| Maximum Recommended rpm: | 6,800 |
| Reluctor Wheel: | 24Xe |
| Balanced: | Internal |
