2003 Harley Davidson Twin Cam Engine - Cam Shafts

Follow along as Dan Rigby installs the parts. There were a few modifications to the OEM parts that needed to be done to get everything to mate up correctly. Kryakyn claims that this motor package would produce 120-plus hp with gobs of usable torque. We put them to the test. Results follow.

When we arrived, the newly bored-out 95-inch cylinders with pistons were already installed.
When we arrived, the newly bored-out 95-inch cylinders with pistons were already installed
The cam plate, oil pump, and gear drives for the cams await installation.
For peace of mind, new Torrington inner cam bearings were installed into the engine case.

With the new camshafts installed in the cam plate, the timing marks on the backside of the cams are visible.
With the new camshafts installed in the cam plate, the timing marks on the backside of the
To make it easier to line up the cams, dots are placed on their outer surfaces as well.
Dan loosely threaded the oil-pump alignment tools in the cam plate to properly align the oil pump while the lifters were held with a magnetic tool.
Dan loosely threaded the oil-pump alignment tools in the cam plate to properly align the o

As the motor was turned over by hand, the alignment tools became loose as the oil pump centered itself. It's a good idea to perform this step a few times until the tools stay tight; this means the oil pump is in the proper orientation and the remaining cam support-plate bolts can be tightened.
As the motor was turned over by hand, the alignment tools became loose as the oil pump cen
The S&S gear drives were placed with the dots aligned with each other. These gear drives, with the design of the cams, eliminate the OEM chaindrive setup. The gear drives eliminate chain lash and lead to more precise control over valve timing with less drag.
The S&S gear drives were placed with the dots aligned with each other. These gear drives,
Before installing the cam cover, we checked for any clearance issues between the new gear drives and the cam cover. Due to some interference, we used a rotary file to trim down the fins inside the cover...
Before installing the cam cover, we checked for any clearance issues between the new gear

...before tightening the cam cover bolts.
Looking at the working end of the billet cylinder head, we see the bathtub-shaped combustion chamber.
Looking at the working end of the billet cylinder head, we see the bathtub-shaped combusti
From the side the careful attention to port detail can be seen. They were designed to produce high-velocity flow, which provides better cylinder fill.
From the side the careful attention to port detail can be seen. They were designed to prod