Cadillac 1993 Eldorado Owners Literature page 352

4.9 LITER ENGINE
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The 4.9 Liter transverse engine is an overhead valve, 90 degree V-8
design. The cylinder bore diameter and the piston stroke provide a piston
displacement of 4.9 liters (300 cubic inches).
This engine utilizes an aluminum crankcase with a separate aluminum
lifter carrier and removable cast iron cylinder liners. The cylinder heads
are made of cast iron and feature integral valve seats and guides. The cast
nodular iron crankshaft is supported at five main bearing journals by cast
iron main bearing caps and shell type steel-backed aluminum inserts. The
center main bearing is the thrust bearing.
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