General Motors has spent decades refining overhead-valve V8s while much of the industry pivoted to dual overhead cam designs, turbocharging, and downsized blocks. I set out to understand why Chevrolet ...

A Honda tech called the 1.5L turbo a "garbage engine" that eats head gaskets. Is your 2017-2022 CR-V at risk? We debunk the ...

Less than 70k miles in, a Ford Godzilla V8 shows rust, scored bores, and a ruined cam, highlighting known issues with the modern pushrod design. Yet reports of spark plug and lifter failures have ...

In a world filled with overhead cams and electrified powertrains, the revelation that Ford would produce an all-new pushrod engine stoked the flames of passion amongst Blue Oval loyalists. Not only ...

OHV stands for overhead valve, and these types of powerplants can also be called pushrod engines. OHV engines have the intake and exhaust valves located above the camshaft, which is in the engine ...

In the valvetrain of your typical pushrod engine, the rocker arm is a critical component that also is an excellent tuning device. To properly tune with rocker arms, though, you need to understand how ...

Pushrods convert the vertical motion of the lifter from the camshaft lobe into valve movement. A V8 engine takes advantage of that by centrally locating a single camshaft in the middle of the engine ...

Fire up a fourth-gen Ford Mustang GT and you'll hear one of two distinctly different V8 soundtracks, depending on when it rolled off the assembly line. From 1994 through 1995, that rumble came from ...

Pushrods may be passe' for Corvettes, as I recently suggested in an earlier Automotive DesignLine Blog post, but they're still setting records. A Chinese-made Dayun motorcycle recently set a speed ...