1. Manifolds & Headers Offered
  2. sku: 7431081221121633
  3. HEDMAN HEDDERS 68447

HEDMAN HEDDERS Primaries 732611684477 TD68447 5/8

fits model: Street.

68447 Hedman Hedders Street Full-length Painted 1 5/8 Inch Primaries

( Brand: Hedman Hedders ), ( Material: Steel ), ( Ipn: Td68447 ), ( California Prop 65 Warning: Warning ), ( Surface Finish: Painted 18-gauge Steel ), ( Important Notes: The Paint Applied To These Headers Is A Temporary Coating Only An ), ( Seller: Summit Racing Equipment ), ( Header Flange Thickness: 1/4 In. ), ( Header Style: Full-length ), ( Header Finish: Temporary Non-high Temperature Paint ), ( Header Primary Tube Size: 1 5/8 In. ), ( Header Outlet Diameter: 3.000 In. ), ( Header Port Style: Oval ), ( Primary Tube Gauge: 18-gauge ), ( UPC: 732611684477 ), ( Manufacturer Part Number: 68447 )

Review HEDMAN HEDDERS Full length Painted 5/8 Inch Primaries fits STREET

Introducing the Hedman Hedders 68447 Street Full-Length 5/8 Primary Head Manifold, a high-performance upgrade for your engine cooling system. This manifold is specifically designed for street applications and delivers an impressive improvement in cooling efficiency.

The Hedman Hedders 68447 is a full-length, 5/8 primary head manifold, which means it covers the entire length of your engine's cylinder heads and features 5/8-inch primary ports. This design provides excellent flow characteristics, enabling your engine to dissipate heat more efficiently and maintain optimal operating temperatures.

This manifold is made from high-quality, T-3 aluminum, which offers superior strength and durability. It is also CNC-machined to ensure a precise fit and excellent finish. The manifold comes with hardened stainless steel studs and gaskets for added durability and longevity.

The Hedman Hedders 68447 Street Full-Length 5/8 Primary Head Manifold features a smooth, polished surface that not only looks great but also reduces the turbulence that can occur in the cooling system. This reduces the risk of hot spots and helps ensure even cooling throughout the engine.

Installing this manifold is a straightforward process, and it is compatible with most popular engine applications. It is designed to be a direct replacement for the factory manifold, making it an excellent choice for those looking to improve their engine's cooling performance without the need for major modifications.

In summary, the Hedman Hedders 68447 Street Full-Length 5/8 Primary Head Manifold is a high-quality, high-performance upgrade for your engine cooling system. It delivers excellent cooling efficiency, superior flow characteristics, and durability, making it an excellent choice for those looking to optimize their engine's performance on the street.

Hedman Hedders 68447 Street Full-Length 5/8 Primaries are aftermarket intake manifolds designed to improve the performance of your engine by providing better airflow and fuel distribution. Here are some pros and cons of buying these intake manifolds:

Pros:

1. Enhanced Performance: By providing better airflow and fuel distribution to the engine, these intake manifolds can help increase horsepower and torque.

2. Improved Engine Response: The improved airflow and fuel distribution can also lead to better engine response and throttle sensitivity.

3. Fit and Finish: Hedman Hedders are known for their high-quality fit and finish, which can make for a visually appealing upgrade to your engine bay.

4. Durability: These intake manifolds are made from heavy-duty materials, which can help ensure long-lasting performance.

Cons:

1. Cost: Aftermarket intake manifolds like the Hedman Hedders 68447 can be expensive, especially when compared to the cost of stock manifolds.

2. Installation Complexity: Installing aftermarket intake manifolds can be a complex and time-consuming process, requiring specialized tools and expertise.

3. Compatibility: These intake manifolds may only be compatible with certain engine configurations, so it's important to make sure they will work with your specific application before making a purchase.

4. Potential for Leaks: Intake manifolds can be prone to leaks, which can lead to performance issues and potential engine damage.

Conclusion:

The Hedman Hedders 68447 Street Full-Length 5/8 Primaries offer several benefits for performance-minded enthusiasts, including improved airflow, fuel distribution, and engine response. However, they come with a higher cost, installation complexity, potential compatibility issues, and the risk of leaks. Ultimately, whether or not these intake manifolds are worth the investment depends on your specific goals and budget.

Recommendation:

If you're looking for a significant performance upgrade and have the budget and expertise to install an aftermarket intake manifold, the Hedman Hedders 68447 may be a worthwhile investment. However, if cost is a concern or you're not confident in your installation abilities, you may want to consider other performance upgrades or stick with the stock manifold. Additionally, be sure to verify compatibility before making a purchase.

part # 68447 prices

  • $380.99-$447.52

specifications maniheader:

  • for models: Street
  • brand: Hedman Hedders
  • material: Steel
  • interchange part number: TD68447
  • california prop 65 warning: Warning
  • surface finish: Painted 18-gauge Steel
  • important notes: The Paint Applied To These Headers Is A Temporary Coating Only An
  • seller: Summit Racing Equipment
  • header flange thickness: 1/4 In.
  • header style: Full-length
  • header finish: Temporary Non-high Temperature Paint
  • header primary tube size: 1 5/8 In.
  • header outlet diameter: 3.000 In.
  • header port style: Oval
  • primary tube gauge: 18-gauge
  • upc: 732611684477
  • manufacturer part number: 68447

offer maniheader:

  • quantity: 1
  • sold: 0
  • started: August 12, 2025
  • options: Ship-to-home
  • availability: In Stock

shipping maniheader:

  • class: Economy
  • type: Fixed
  • service: Economy
  • cost: $0.00
  • transit: 2-4 Days

seller maniheader:

  • # reviews: 1128620
  • rating: 98.7%

general maniheader:

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

returns maniheader:

  • policy: Returns Accepted
  • time: 60 Days
  • paid by: Seller

payments maniheader:

  • other
  • wallet: Google-pay
  • credit card: Diners-club
for models: street, california prop 65 warning: warning, surface finish: painted 18-gauge steel, important notes: the paint applied to these headers is a temporary coating only an, seller: summit racing equipment, header flange thickness: 1/4 in., header style: full-length, header finish: temporary non-high temperature paint, header primary tube size: 1 5/8 in., header outlet diameter: 3.000 in., header port style: oval, primary tube gauge: 18-gauge,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, material: steel, sku: 7431081221121633,

Hedman Hedders 68447 Is Similar To:

maniheader logo
2 offers $380.99–$447.52 USD
  • Offer #1: $447.52 price + free delivery = $447.52* total. Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters) Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating! . Long-Tube E.O.FREE SHIPPING
  • Offer #2: $380.99 price + free delivery = $380.99* total. Headers, Street, Full-Length, Steel, Painted, Chevy, 5.7L, Pair.FREE SHIPPING