One of the reasons American motorcycle and car manufacturers continue to use Overhead Valve (OHV) engines is their proven performance and durability. Here are some key factors that contribute to the continued use of OHV engines:
Simplicity and Cost-effectiveness: OHV engines are relatively simple in design, with fewer moving parts compared to more complex engine configurations like Overhead Cam (OHC) engines. This simplicity makes OHV engines easier and less expensive to manufacture, maintain, and repair.
Torque Output: OHV engines are known for their high torque output at low RPMs, making them well-suited for applications that require a lot of low-end power. This characteristic is often desirable in vehicles such as heavy cruisers, muscle cars, and trucks, where strong acceleration and towing capabilities are prioritized.
Compact Size: OHV engines tend to be more compact than other engine configurations, allowing them to fit within the tight space constraints of certain vehicle designs. This is particularly important in motorcycles, where space optimization is crucial.
Tradition and Brand Identity: Some American motorcycle and car manufacturers have a long history and heritage associated with OHV engines. They have built a reputation around the performance and character of these engines, which contributes to their continued use as a part of brand identity.
Customization and Aftermarket Support: OHV engines have been in use for many decades, resulting in a vast aftermarket support network for parts, modifications, and customization. This availability of aftermarket options and the ease of customization can be appealing to enthusiasts who want to personalize their vehicles.
It's important to note that while OHV engines have their advantages, other engine configurations like OHC engines or even newer technologies like electric powertrains are gaining popularity and being adopted by American manufacturers as well. Ultimately, the choice of engine configuration depends on the specific needs and priorities of the vehicle and its intended use.