Intakes can be plastic, aluminium, or iron (steel). Exhaust manifolds are always steel or cast iron.
cast iron
Cast iron with Crome 25%
Cast iron engine blocks, heads, exhaust manifolds, differential housings,
Stainless steal or cast iron typically
On a 1995 Ford Explorer : The 4.0 liter V6 engine has a cast iron cylinder block and engine heads
The part that connects the exhaust pipes to the motor is called the exhaust manifold. It collects exhaust gases from the engine's cylinders and directs them into the exhaust system. The manifold typically has ports that align with the engine's exhaust outlets and is usually made of cast iron or stainless steel for durability.
all engines have exhaust headers but the headers your thinking of are aftermarket performance headers, the ones on the 440 from the factory are made of cast iron.
a fairly bulky rusted cast iron piece bolted to the side of the motor they always look rusty because they generally don't paint them due to the high temperature involved in exhaust
Just "Davey".
you can get iron plate by using explorer kit
This v6 engine has the traditional front-wheel drive 'transverse' mounting. This means the exhaust manifolds are on the front (towards the radiator) and back (facing the firewall) sides of the engine.The exhaust manifold is made of heavy cast iron and directly beneath where the sparkplugs mount.