When did the Pontiac High flow header come out?
Available through dealership parts departments, Pontiac’s high-flow cast headers became part of its factory-installed Super Duty package introduced in 1962. The cast-iron headers were very heavy. A cast-aluminum version was developed to reduce overall vehicle weight for those regularly competing in drag races.
What kind of exhaust manifold does a Pontiac Grand Prix use?
An abbreviated version of the cast Super Duty header was developed for Pontiac’s high-performance street applications. The “long branch” manifold fits many full-size Pontiac models from the 1960s including the Grand Prix, as well as first-generation Firebirds. RARE offers excellent reproductions with 2.5-inch collectors.
Which is the best header for a Pontiac engine?
The size of your engine, cylinder head airflow, and the RPM range you plan to operate it in will dictate which size is best for you. There are a number of companies producing high-quality Pontiac headers today, including Doug’s, Hedman, Hooker, and Mad Dog.
How big is the exhaust manifold on a Pontiac Firebird?
Shorty headers fit and perform similarly to Pontiac’s Ram Air exhaust manifold. Hedman offers a D-port version in its Hedder line for GTO and Firebird models that features 1.625–inch-diameter tubing that steps to 1.75 inches to improve low-RPM torque, and 2.5- and 3- inch collectors.
What kind of head does a Pontiac have?
Round-port Heads. They’re called round-ports because of the round shape of the exhaust ports, which is the part of the head that connects to the exhaust manifold or header. All Pontiac round port heads are big valve heads with 2.11-inch intake and 1.77-inch exhaust valves.
Available through dealership parts departments, Pontiac’s high-flow cast headers became part of its factory-installed Super Duty package introduced in 1962. The cast-iron headers were very heavy. A cast-aluminum version was developed to reduce overall vehicle weight for those regularly competing in drag races.
An abbreviated version of the cast Super Duty header was developed for Pontiac’s high-performance street applications. The “long branch” manifold fits many full-size Pontiac models from the 1960s including the Grand Prix, as well as first-generation Firebirds. RARE offers excellent reproductions with 2.5-inch collectors.
What kind of exhaust pipe does a Pontiac use?
Luckily, there are components available that can carry higher volumes of exhaust gasses. Pontiac’s performance cast iron or aluminum manifolds, aftermarket headers, crossovers, high flowing exhaust pipes and mufflers can be used in various combinations to handle flow.