How to ID a 5.7 engine

Is the intake plastic or metal? 5.7 did not have an aluminum intake.

The 5.7 posted above is from a truck. The intakes and water pumps and such are completely different from a truck to a car.

All 5.7s we have, have the 5.7 physically cast into the block.

A 5.7 with a car intake...

20160606_124950.jpg