Why It Matters
The 1968 Firebird 400 HO engine assembly is tracked separately from the base Firebird 400, Ram Air 400, and Ram Air II paths because reviewed sources describe distinct 335 hp HO specifications, carburetor numbers, and cam timing by transmission.
Also Known As
1968 Firebird 400 HO engine assembly1968 Pontiac Firebird 400 HO engine assemblyFirebird 400 HO 335 hp engine assemblyPontiac 400 CID 4-Barrel HO V-8 Firebird engine assemblyL74 Firebird 400 HO engine assembly
