PONTIAC 478141 Trans Am Air Iv Header

( Type: Exhaust Manifold ), ( Manufacturer Part Number: 478141 )

Review PONTIAC Rare To Trans Am Air Iv And Factory Header fits RAM GTO HO 455 1970–1972

The Pontiac GTO Ram Air IV 455 HO (Horsepower Option) Trans Am from the years 1970 and 1972 is an iconic muscle car that represents power, performance, and style. Let's take a closer look at this legendary vehicle's features in detail.

Under the hood, you'll find the 455 Cubic Inch V8 engine, known as the "High Output" version. With its 7.5:1 compression ratio and a four-barrel Quadrajet carburetor, this powerhouse delivered a remarkable 366 horsepower at 5200 RPM and 510 Nm of torque at 3400 RPM during its peak performance years. Maximum engine speed was rated at 5600 RPM.

The Ram Air IV intake system is part of what makes this engine so noteworthy. It includes an air inlet on the hood that lays flat when the car is idling or cruising, but opens at highway speeds to provide a direct flow of cool ambient air to the engine. This not only boosts engine performance but also creates a distinct and menacing appearance.

A notable feature that sets this 455 HO apart is its engine casting designation: W72. This engine, which was built exclusively for the Trans Am models, underwent substantial modifications to increase power output. Specifically, it featured cast-iron cylinder blocks, forged pistons, and high-performance connecting rods.

The engine is mated to a heavy-duty Muncie M22 "Rock Crusher" close-ratio four-speed manual transmission, which provides quick and precise gear shifts, ensuring the power from the 455 HO engine is efficiently transmitted to the rear wheels. This combination of the big-block V8 engine and the Muncie M22 transmission made for exhilarating acceleration and superior performance.

Other notable features of the 1970-1972 Pontiac GTO Ram Air IV 455 HO Trans Am include its WS6 performance suspension package, which features heavy-duty front and rear springs, quick-ratio power steering, and a heavy-duty radiator. The Trans Am's iconic exterior is marked by its distinctive hood scoop, rear-end spoiler, and stripe packages. Inside, drivers enjoyed upgraded appointments such as a wood-grain steering wheel, bucket seats, and a special instrument cluster with the "gauge package option."

The Pontiac GTO Ram Air IV 455 HO Trans Am from the 1970 and 1972 model years represents a pinnacle of American muscle car design and engineering. From its powerful 455 HO engine and performance-enhancing Ram Air IV intake system to its distinctive styling and upgraded interior, this vehicle is a thrilling combination of raw power and refined craftsmanship.

Pros and Cons of Buying a 1970-1972 Pontiac GTO Ram Air IV 455 HO with Header

a) Power and Performance: The Ram Air IV 455 HO engine is a high-performance powerhouse with an impressive output of 366 horsepower and 495 ft-lb torque. This engine makes the Pontiac GTO a desirable muscle car for those seeking excitement and raw power.

b) Rare and Desirable: The 1970-1972 Pontiac GTO Ram Air IV 455 HO is a rare muscle car, with fewer numbers produced compared to other models. This scarcity makes it a valuable investment for collectors and enthusiasts.

c) Distinctive Design: These Pontiac GTOS feature a unique Ram Air hood design with functional scoop and hood pins, adding to their visual appeal and character. Additionally, they are available in various attractive colors, making them a head-turner at car shows and on the road.

d) Customizability: The GTO platform offers numerous opportunities for customization, allowing enthusiasts to personalize their vehicles according to their preferences. Upgrades, restorations, and performance modifications have a long-lasting impact on the car's value and enjoyment.

e) Collectible Potential: Given the rarity and desirability of these muscle cars, the value can appreciate significantly over time. Thus, purchasing a 1970-1972 Pontiac GTO Ram Air IV 455 HO today may result in a considerable return on investment in the future.

a) Fuel Efficiency: Muscle cars from this era are not known for their fuel efficiency. Today's high gas prices and focus on emission reduction may result in higher operational costs for the GTO. These cars typically require premium fuel to reach their full performance potential.

b) High Maintenance Costs: Collectible vehicles generally have higher maintenance costs due to the premium parts required to keep them in prime condition. These expenses, alongside the costs of repairs and general wear, can add up.

c) Limited Usability: As desirable collector items, these cars aren't typically used daily drivers. Their value and performance potential may be compromised due to frequent daily use, especially for longer trips or errands.

d) Regulations: Some classic car collectors may face restrictions when registering or insuring their muscle cars, as these vehicles don't comply with current emissions, safety, and other standards.

The 1970-1972 Pontiac GTO Ram Air IV 455 HO is a rare, powerful, and desirable classic muscle car with numerous pros that appeal to collectors and enthusiasts. However, potential buyers should also be aware of the cons resulting from its high performance, limited usability, and maintenance costs.

If you're passionate about muscle cars and are willing to invest the time, effort, and financial resources, a 1970-1972 Pontiac GTO Ram Air IV 455 HO could be a worthwhile addition to your collection. Ensure thorough research on the car's history, price range, and maintenance requirements to make a well-informed decision to maximize enjoyment and potential future value.

part # 478141 price

• $1200.00

specifications maniheader:

• for models: Gto, Ho, 455, Ram
• for makes: Pontiac
• for years: 1970-1972
• type: Exhaust Manifold
• manufacturer part number: 478141

returns maniheader:

• policy: No Returns

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: Used

seller maniheader:

• # reviews: 214
• rating: 100.0%

payments maniheader:

• other
• wallet: Google-pay
• credit card: Discover

shipping maniheader:

• carrier: USPS
• service: USPS Ground Advantage
• type: Calculated
• cost: $30.75
• transit: 5-12 Days
• class: Standard

offer maniheader:

• availability: In Stock
• best offers: True
• sold: 0
• started: January 29, 2025
• options: Ship-to-home
• quantity: 1

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