Can your cylinder head bolt handle about 13,827 pounds of cylinder pressure to its head? That is only on engines with four inch cylinder bores and 1,100 pounds per square inch combustion pressure; how about on more demanding automobiles? This is why even the bolt of your cylinder head should be maintained and replaced almost regularly. In fact, getting quality replacements only from world-class manufacturers is recommended. This will ensure reliable performance in sealing the head to the gasket and block. The cylinder head bolt is physically rigid but is designed to stretch like a rubber, enabling it to create a clamping force. This happens when the thermal stress starts to build up in the engine section. This accomplishes two things in the engine: overcoming friction between the fastener threads and the block holes' threads and the friction of bolt head underside as it turns against the cylinder's head and stretches to keep the head mated with the block. These functions are also the main reasons why this bolt will sure wear over time. You must accurately tighten it and the thermal stress under the hood should be kept to the minimum. For the complete line of cylinder head bolt replacements for your vehicle make and model, Car Stuff got you covered! With our complete selection, you never have to go far. Post an order right in this catalog and rest assured that it will be on your door steps in less the time!