LS4 ✓ Factory-verified

Pontiac · Regular Production Option

Engine, gas, 8 cylinder, 5.3L, SFI, aluminum, cylinder deactivation, GM

Years 2005–08 Models 1 Factory citations 4

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Also documented for BuickChevrolet

Documented applications

Grand Prix — Eighth generation (2004–2008) →

• 2005–2008 ✓ Factory-verified

  Shared W-body code; Chevrolet Impala and Monte Carlo kits.

  ⛭ GM factory document — 2005 pontiac grand prix rpo code list, p.1.

  ⛭ GM factory document — 2008 pontiac grand prix rpo code list, p.1.

  ⛭ GM Heritage factory kit — 2006 Chevrolet Impala, p.115.

  ⛭ GM Heritage factory kit — 2006 Chevrolet Monte Carlo, p.112.

This page aggregates every documented appearance of LS4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.