When you are looking to improve your car’s performance, there are many things you can consider doing to upgrade the engine. Cylinder head porting is a popular option for anyone hoping to increase the power of their car. Today, we will answer the most frequently asked questions about cylinder head porting and help you decide if this is an option that’s suitable for your needs.
The Toyota AZ engine family is a series of straight-4 piston engines which use an aluminum engine block that’s made with aluminum DOHC cylinder heads and cast iron cylinder liners. The technology used in this series of engines is very impressive, which is why they were used for many years in Toyota vehicles. The AZ was the replacement for the previous S engine and was succeeded by the AR engine. Today, we’re going to take a look at the various engines in the Toyota AZ engine family and the differences and key features of each of these engines.