The Engine Top End, is basically every part of the engine, that exists above the cylinder head gasket.
And, is by far the most important part of the engine. But, the top end, is not just one thing. Because, it is made up of, it’s own list of parts.
Furthermore, not all engine are the same or even include, the same parts. Consequently, most of that depends on the year, make, model and engine size.
The Engine Top End comes in, two different configurations.
- Overhead valve (OHV) engines have valve train components that consist of valve springs, rocker arms, pushrods, and lifters.
- Overhead camshaft (OHC) engines have valve train components that consist of valve springs, rocker arms, and lifters.
The difference between these two engines, is the location of the camshaft.