AN Y-Fitting Manifolds

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.

Keep your rear cylinders running cool in a high performance engine by installing a water bypass kit to the intake manifold.

AN fittings are a simple and effective way to plumb fluid systems in your car. This AN fittings install guide answers some of the more common questions pertaining to AN fittings and AN line.

Dick from Koul Tools shares a tip on how to properly seat the AN fittings using the Koul Tools device.

Dual plane or single plane intake manifold? Which is the best for your project vehicle's engine? Learn the differences in our buyer's guide.

Our Tru-Ram Exhaust Manifolds are one of our most popular items. Tim provides more details about them and gives you a great look at them.

Follow along as Speedway Tech Kevin talks about the intake that he decided on for the 454ci in his '54 Chevy, and some of the reasoning behind his choice.

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

What fittings should you use with your brake or fuel system? What does AN and NPT stand for? All of these questions plus more will be answered in Speedway Motors' latest article about fasteners!

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.