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Chevrolet Performance LS 364/450 Longblock

Chevrolet Performance LS 364/450 Longblock

Chevrolet Performance LS 364/450 Longblock

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Original Price: $4,637.00


Chevrolet Performance engineers have developed the LS364/450 as a value-driven foundation for hot rod 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, the LS 6.0L features the high-lift LS6 camshaft and the deep-breathing LS3 aluminum cylinder heads. It’s a strong combination with exceptional horsepower and a broad torque band. It is also fuel injection-capable, using production-based components offered from Chevrolet Performance.

Engine LS364 Longblock
Horsepower 452HP @ 5600RPM
Torque 441FT/LBS @ 4800RPM
Compression Ratio 10.3:1
Block Cast iron with 6-bolt block, cross-bolted main caps
Crankshaft Nodular Iron, 3.622″
Heads LS3 rectangular port; aluminum, as-cast with 68cc chambers
Valves 2.165″/1.590″
Camshaft Lift 0.550″/0.550″ Hydraulic Roller
Dur. @ 0.050″ 204°/218°


• 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

The LS364/450 is designed with the early-style 24X crankshaft and 1X camshaft sensors, enabling easier retro-fit installation in early LS-powered vehicles, including 1998–2002 Camaros, C5 Corvettes, 1999–2006 full-size trucks and SUVs, and other LS vehicles.

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