An upgrade to a premium air intake manifold delivers significant performance breakthroughs to enthusiasts who care about vehicle enhancement. All car owners who drive 6.7 Cummins diesel engines and ...

Two signs high-mileage diesel owners should clean the often-overlooked intake manifold are reduced performance and worse fuel economy.

For most gearheads, there's nothing quite thrilling like the roar of a tuned engine and the instant kick of improved acceleration. Of course, buying a muscle car to enjoy lots of raw power and torque ...

Crate engines provide an excellent alternative to rebuilding a stock engine or purchasing a remanufactured long block to renew the HEMI power plant in your Mopar or swap it into your project vehicle.

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...

Form and Function - A Look at Intake Manifold Design: Intake manifolds play a huge part of power production, here’s some of the hows and whys Internal combustion engines are fairly simply machines.

Hot Rod may be celebrating its 65th anniversary, but Ford's flathead V8, the engine that birthed the entire hot rod hobby (and, in due course, this magazine) first rolled off the production line ...

For years LT1 enthusiasts have been running well into the nines with factory LT1 and LT4 intake manifolds. With some porting the factory castings have proven capable competitors, even on big-cube and ...