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Ford 302 Small Block Engine Headers: Buying Guide

June 05, 2024  -  Exhaust Systems

6 People Found This Article Helpful

Are you looking to perk up your engine? If so, you can't go wrong with a new set of headers, but finding the best headers is easier said than done. For example, you might wonder if you can swap 351 headers onto a 302 engine or whether Ford 302 shorty or long-tube headers will add more power to your ride.

Thankfully, we have you covered. in this article, we will cover some of the best Ford 302 headers on the market and answer common questions about the specifications of Ford 302 headers, how much power you can add, and much more.

How Much Horsepower Do Headers Add To A 302?

Installing headers on a Ford 302 small block engine can significantly enhance its performance by improving exhaust flow. Typically, a high-quality set of headers can add between 10 to 20 horsepower, depending on the overall setup and condition of the engine. The exact gain varies based on factors such as the design of the headers (shorty vs. long tube), the existing exhaust system, and other engine modifications. Long tube headers generally offer more horsepower gains at higher rpms compared to shorty headers (which produce more torque at lower rpms) due to their ability to reduce backpressure and improve scavenging effects. However, to maximize these benefits, it is essential to pair the headers with a free-flowing exhaust system and other performance enhancements like a high-flow air cleaner/cold-air intake, or an upgraded camshaft.

Will 351 Headers Fit On A 302 Engine? 

While the Ford 351 engines and 302 engines share some similarities, their headers are not directly interchangeable. The main difference lies in the deck height and overall dimensions, which affects the placement and fitment of the headers. The 351 Windsor has a taller deck height compared to the 302, resulting in different header flange angles and bolt patterns. This means that headers designed for a 351 engine will not align properly with the exhaust ports on a 302 engine. For optimal performance and fitment, it is essential to use headers specifically designed for the Ford 302 small block engine. This ensures that the exhaust gases flow efficiently and that installation is straightforward, without the need for modifications.

302 Small Block Engine Headers Specs 

The specifications for headers designed for the Ford 302 small block engine can vary depending on the model year and the intended application, whether it be street performance or racing. However, there are some common specifications to consider when selecting headers for a 302 engine. Typically, headers are available in materials such as stainless steel, black-painted mild steel, or ceramic-coated steel, with the latter offering better heat resistance and durability. The design of the headers can be either shorty or long-tube, with long-tube headers generally providing better performance gains due to improved exhaust flow. The primary tube diameter commonly ranges from 1-½ inches to 1-¾ inches for street applications, although racing headers may have larger diameters. Additionally, the collector size is usually 2-½ inches, with some high-performance options available in 3 inches. These specifications can vary based on the specific engine configuration and the manufacturer's design, so it's important to consult the product details to ensure compatibility with your 302 small block engine.

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Best Headers For Ford 302 

Plenty of headers are available for Ford 302 engines. Unfortunately, some headers are better than others, and finding the best fit for your needs can be difficult. Thankfully, we have a list of the best headers for a Ford 302 engine. Learn more about our top three choices below.

1. JEGS Metallic Ceramic Coated Long Tube Headers For 1964-1973 Small Block Ford Passenger Car (260-302W c.i.d.)

JEGS Metallic Ceramic Coated Long Tube Headers are a great choice if you're looking for long-tube headers. They're great for older Mustangs, Cougars, Falcons, and even Rancheros. Still, what makes these headers great is their design. They have a ceramic-coated finish that will shine for many years to come, and they also come with everything you need to complete the installation. You don't have to worry about finding gaskets, reducers, or any other hardware because these headers come with everything right out of the box. Still, there are some incompatibles you need to be aware of. The biggest one is that it won't fit manual transmission Mustangs or Cougars from 1971-1973 or automatic transmission Mercury Comets from 1966-1969.

2. JEGS Painted Long Tube Headers For 1979-1993 Ford Fox Body 5.0L

Are you rocking a Fox Body Ford Mustang? If so, these headers are a great choice and come painted. They fit most Ford 5.0s of the era and mount right onto your vehicle. You can also use these headers if you have a 1979 to 1986 Mercury Capri. This makes them a flexible option and a safe choice for most Ford 302 engines from 1979 to 1993.

It comes with everything you need right out of the box, including any gaskets and other parts you may need to complete the installation. The only caveat is that you must modify the stock exhaust system, which may not be legal in your area, so check with local emission laws. These headers are long-tube, so your engine will sound more aggressive and should experience a slight boost in power.

3. Hooker Headers Competition Headers For Ford 255-302W 

Hooker is a well-known brand in the industry due to its dedication to using high-quality parts. What's more, these Hooker headers are compatible and flexible. You can mount them on classic Mustangs from 1964 to 1973 and some other vehicles, including the Ford Maverick, Falcon, Comet, and Cougar. If you have a small block 302 from this era, these headers will help you squeeze the maximum power out of them with the right tune. The only drawback to these headers is that they're only street-legal if the vehicle is pre-1974. While this shouldn't cause an issue for most cars with which these headers are compatible, it can cause problems for a few late 70's Ford Mavericks.

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