5.3L Engine

The LS engine design has incredible potential, but once you start bolting on big superchargers, an aluminum block just can't contain all of that power. These iron LS blocks have all of the same potential, but their cast iron construction is capable of...

LM7 The Vortec 5300 LM7 (VIN code 8th digit "T") was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's. The 1999 LM7 engine produced 270 hp (201 kW) and 315 lb·ft (427 N·m),...

LM7 The Vortec 5300 LM7 (VIN code 8th digit "T") was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's. The 1999 LM7 engine produced 270 hp (201 kW) and 315 lb·ft (427 N·m),...

LM7 The Vortec 5300 LM7 (VIN code 8th digit "T") was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's. The 1999 LM7 engine produced 270 hp (201 kW) and 315 lb·ft (427 N·m),...