1LE was a track package (Corvette calipers, Caprice front rotors, aluminum driveshaft, baffled fuel tank) developed by a team including John Heinricy — a name better known from Corvette. It appeared on no order form: you triggered it by ordering a hardtop IROC-Z with the G92 axle, G80 limited-slip, and — the essential catch — C41 air-conditioning delete. Because you had to already know the recipe, only about four were delivered in the US its debut year.
For this model year, CamaroFacts separates documented changes from production totals that remain secondary or unresolved. The engine, identification, and confidence notes below are intended to make those boundaries visible instead of smoothing them into a single unsupported narrative.