Enter Ken Hutchison and his out-of -the-box 300-inch Ford inline-six engine build ... Another $90 got him six 317-casting aluminum LS heads. Why LS heads? "This led me to Ellison's Machine ...

An amalgamation of parts and homebrew engineering that has its roots in the 1970s, the Boss 300 is a rare, non-OEM engine based on the tried and true Ford 300. The 4.9-liter inline-six with a gear ...

They are proportionally heavier than their higher-revving V-8 cousins, with stout blocks and bottom ends that are bulky because Ford ... an aluminum cylinder head for the inline-six that will ...