347 ● Confirmed

Pontiac · Regular Production Option

Ram Air 400 (special order) — Ram Air I, replaced mid-year by Ram Air II (366 hp)

Years 1968 Models 2

Also described as Ram Air 400 (special order) — Ram Air I, then Ram Air II mid-year

Documented applications

Firebird / Trans Am →

• 1968 ● Confirmed

  Confirmed by sales-manual list + billing-history codes page

GTO →

• 1968 ◑ Single-source

  Documented on Firebird sales-code list; same-era GTO Ram Air ordering used sales codes — GTO-specific number not independently confirmed

This page aggregates every documented appearance of 347 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.