Reference Details
- Availability
- optional · 1965 Pontiac Catalina 2+2 421
- Category
- performance · 1965 Pontiac Catalina 2+2 421
- Code
- 421 HO · 1965 Pontiac Catalina 2+2 421
- Confidence
- documented · 1965 Pontiac Catalina 2+2 421
- Notes
- High-output camshaft, valve springs, exhaust manifolds, low-restriction air cleaners, declutching fan, and 461 lb-ft rating. · 1965 Pontiac Catalina 2+2 421
- Availability
- optional · 1965 Pontiac Grand Prix
- Category
- performance · 1965 Pontiac Grand Prix
- Code
- 421 HO · 1965 Pontiac Grand Prix
- Confidence
- documented · 1965 Pontiac Grand Prix
- Notes
- High-output camshaft, exhaust manifolds, valve springs, low-restriction air cleaners and declutching fan. · 1965 Pontiac Grand Prix
- Availability
- optional · 1966 Pontiac Grand Prix
- Category
- performance · 1966 Pontiac Grand Prix
- Code
- 421 HO · 1966 Pontiac Grand Prix
- Confidence
- documented · 1966 Pontiac Grand Prix
- Notes
- High-output camshaft, exhaust, cooling and induction equipment; not established by carburetors alone. · 1966 Pontiac Grand Prix