LS2 ✓ Factory-verified

Pontiac · Regular Production Option

Engine, gasoline, 8 cylinder, 6.0 liter, sequential fuel injection, aluminum, General Motors

Years 1973–74, 2005–06 Models 2 Factory citations 2

Query this via API →

Also described as Super Duty 455 (SD-455, 310/290 hp net) — $550 (’73)

Also documented for BuickCadillacChevroletOldsmobile

Documented applications

Firebird / Trans Am →

• 1973–1974 ● Confirmed

  Trans Am & Formula only; sales code 35X; ’73 engine block code X; 252 built ’73 (T/A), 943 T/A + 58 Formula ’74

GTO — Fifth generation (2004–2006) →

• 2005–2006 ✓ Factory-verified

  The 2004 list does not carry it.

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

  ⛭ GM factory document — 2006 pontiac gto rpo code list, p.1.

This page aggregates every documented appearance of LS2 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.