* Type of Cam: You'll need to choose a camshaft appropriate for your intended use. A mild cam will provide a modest performance increase with minimal changes needed to other engine components. A more aggressive cam will require more modifications (e.g., valve springs, pushrods, possibly heads). Consider your budget and driving style when making your selection.
* Engine Modifications: A more aggressive camshaft will likely necessitate upgrades to other engine components. This could include:
* Valve Springs: Stronger springs are needed to control the valves at higher RPMs. Stock springs may not be adequate for a performance cam.
* Pushrods: The correct pushrod length is crucial for proper valve train geometry. Using the wrong length can lead to damage. You'll likely need to measure pushrod length after cam installation.
* Rocker Arms: Depending on the cam and its lift, you might need upgraded rocker arms.
* Headers/Exhaust: A performance camshaft will benefit from a free-flowing exhaust system.
* Carburetor or Fuel Injection Tuning: The engine's fuel and air mixture needs to be adjusted to match the camshaft profile. This could involve carburetor rejetting or computer tuning (for TBI systems).
* Installation: Installing a camshaft requires removing the timing chain cover, timing chain, and possibly the intake manifold. It is a significant undertaking and requires mechanical aptitude and the right tools. Incorrect installation can lead to engine damage.
In short: While possible, installing a camshaft is not a beginner-level project. If you lack experience with engine work, it is strongly recommended to seek the help of a qualified mechanic. Failure to correctly install and tune the camshaft and associated components can result in poor performance or even engine damage.
