LS364 450HP LS Long block

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

Horsepower452HP @ 5600RPM

Torque441FT/LBS @ 4800RPM

Compression Ratio10.3:1

BlockCast iron with 6-bolt block, cross-bolted main caps

Crankshaft Nodular Iron, 3.622"

Heads LS3 rectangular port; aluminum, as-cast with 68cc chambers

Valves2.165"/1.590"

Camshaft Lift0.550"/0.550" Hydraulic Roller

Dur. @ 0.050"204°/218°

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.