Starting Jan20 2017 and running till the end of February 2017 we will be running a sale on Cylinder heads. All 5.7, 6.1, and 6.4 ported heads will be on sale for $1799 plus cores and shipping. This includes CNC port program, bronze guides, PSI 1511 springs. Hardened locators and shims, viton seals and custom valve job. Chrome moly or titanium retainers, larger valves, custom work all available for extra cost.