Engine: Description and Operation: Overview

Engine

Overview
The liquid cooled V8 supercharged engine is a 4.2 liter unit, arranged in a 90 degree 'V' configuration, with a 4-throw crankshaft supported by 5 main bearings.
The lightweight cylinder block is of cast aluminum alloy construction with cast iron liners.
The cylinder heads, which are also manufactured in cast aluminum alloy, are unique for each cylinder bank. Deep seated bolts reduce distortion and secure the cylinder heads to the cylinder block. Each cylinder head incorporates 2 overhead camshafts, operating 4 valves per cylinder via valve lifters. A VVT (variable valve timing) system gives improved low and high-speed engine performance and excellent idle quality. The lightweight valve gear provides good economy and noise levels and is chain driven, via the crankshaft, for durability.
The aluminum alloy bedplate is a casting bolted to the bottom of the cylinder block to retain the crankshaft and improve lower structure rigidity. The oil pan assembly consists of a pressed steel oil pan bolted to a structural aluminum alloy casting, which is then bolted to the bedplate.