Twin Cam Engine Build Part 4 of 5
Let’s finish the cam installation and move on to the lifters. If you’re just now joining us, we’re rebuilding the Twin Cam A from a `99 Harley FXDX. After a 100,000 miles of loyal service, the motor had earned a spa day.
After we broke it down, we inspected it, and then sent the lower end to Darkhorse Crankworks (DHC) so its squad of bottom-end experts could rework the tired components. Working with Dave Mackie Engineering (DME), we concocted a solid 107ci top end using bored H-D cylinders and some DME Mega-Sphere pistons, complemented by a DME cam. Both DME and DHC are known for their superior quality and attention to detail, so it was a pleasure to assemble this motor knowing the end result would be a powerful yet balanced blueprinted motor.