Chevrolet Performance GEN III LS 364CI 6.0L 24X Long Block - 450 HP - LS2 Replacement - Budget Performance Build

Budget LS Performance with Modern Technology

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.

Key Specifications:

• Part Number: 19370163 / 19434650
• Engine Type: Performance LQ9 Long Block Gen III
• Displacement: 364 cu in (6.0L)
• Bore x Stroke: 4.000" x 3.622" (101.6 x 92 mm)
• Power: 450 horsepower
• Torque: Approximately 420 lb-ft
• Compression Ratio: 10.3:1 (nominal)
• Maximum RPM: 6,800 recommended

Strong Foundation:

• Cast iron block with 6-bolt, cross-bolted main caps
• Nodular iron crankshaft
• Powdered metal connecting rods
• Hypereutectic aluminum pistons
• Strong, economical iron cylinder block and durable rotating assembly

Advanced Cylinder Head Technology:

• LS3 rectangular port aluminum cylinder heads, as-cast with 68cc chambers
• 2.165" intake (hollow stem) / 1.590" exhaust (solid stem) valves
• Deep-breathing LS3 aluminum cylinder heads for exceptional airflow
• Investment cast, roller bearing trunnion rocker arms with 1.7:1 ratio

High-Performance Camshaft:

• LS6 hydraulic roller camshaft (P/N 12565308)
• Valve lift: 0.550" intake / 0.550" exhaust
• Duration @ .050": 204° intake / 218° exhaust
• High-lift LS6 camshaft for broad torque band

Retrofit-Friendly Design:

• Designed with the early-style 24X crankshaft and 1X camshaft sensors
• Compatible with 19982002 Camaros, C5 Corvettes, 19992006 full-size trucks and SUVs
• 24X reluctor wheel for compatibility with early LS systems
• Internal balance