Maintain your Chevy LS6 engine with this ARP Pro Series cylinder head bolt kit. This head bolt kit is designed to fit a variety of small block Chevy pickup engines. These bolts are made of stainless steel to withstand the extreme temperatures of a vehicle's engine. They are also rated at a stunning 190,000 psi. The hex style heads and durable studs last for many years and are easy to install with hand or power tools.