Engine: Description and Operation

The concept of modularity allows engine designs to share communization between concepts and engine hardware. The illustration (modular engine-typical) represents the basic cross sectional view of a modular V8 engine. The four modules are the:
- Intake module
- cylinder head module (RH)
- cylinder head module (LH)
- lower engine module

The modular engine concept supports efficiencies during repairs by allowing the removal and installation of these modules. While not all in-vehicle repairs can take advantage of the modular concept, most out-of-vehicle repairs benefit in reduction of time and labor needed to repair the engine.

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The basic engine components consist of:
- single overhead camshaft.
- two valves per cylinder.
- sequential multiport fuel injection (SFI).
- aluminum cylinder heads.
- cast iron, 90-degree V.
- cylinder block.
- individual ignition coils for each spark plug.
- two-piece intake manifold system.
- composite-material lower intake manifold with noise insulator.
- Large-bore throttle body.