Your cylinder heads are some of the most crucial components in your entire vehicle. They determine the flow of gases in and out of the motor and allow for the high combustion pressures necessary to make your vehicle go down the road. If your Scion iA cylinder heads have been damaged from overheating or even normal wear and tear then it is time to step up to a new set. Here at Andy's Auto Sport we have an excellent selection of Scion iA cylinder heads for you to select from. Whether you want an OEM replacements or high-performance models you are sure to find the perfect Scion iA cylinder heads for your application in our extensive collection.

Cylinder heads are especially vulnerable to cracks and warpage because of the high temperatures they are exposed to during normal combustion. If your cylinder head is damaged it can cause loss of power, coolant leaks and eventually lead to total engine failure. Replacing your Scion iA cylinder heads will restore your vehicle to top running condition. If you are looking for a little added performance there are several companies offering high-flow cylinder heads that will provide a great boost in power and efficiency. This is a great way to stay a step ahead of the competition.

Q: What are cylinder heads? Why buy them?
A: The cylinder head is the top portion of an engine, sometimes referred to as the top end, which contains the intake and exhaust valves and is responsible for regulating the flow of air into the motor and exhaust out of the motor. The more air that can flow through the cylinder head the more power your engine will produce. Aftermarket cylinder heads have been designed with better port angles and numerous other improvements to increase flow and efficiency and thus improve performance. If you are looking to increase your vehicle’s performance a high-flow cylinder head will make one of the largest differences. Stock cylinder head designs can be very restrictive, so simply switching to an aftermarket head can transform your ride into a high performance machine. If you are doing an engine overhaul we highly recommend looking into adding a high-flow cylinder head.