

4 Forged billet steel Manley connecting rods are used in their standard competition engines with the option to use Crower or Carrillo rods for an additional charge. 3 The heart of one of their competition engines is the reground and polished factory crankshaft. 2 They have all the electronics required to run the engine right there on the dyno along with additional sensors to monitor every aspect of engine performance for diagnostics and performance evaluation. 1 Jonathan “Swamp” Ryan is the head of R&D at Swamp’s Diesel Performance and he operates the shop’s dyno cell from his command center while the engine runs behind safety glass in front of his monitor bank. Not only did we see one of these 800+ horsepower beasts run on the engine dyno, we also went behind closed doors into the engine assembly department to check out the parts and pieces that go into one of Swamp’s competition engines.

This month, the folks at Swamp’s Diesel Performance in LaVergne, Tennessee, gave us the behind-the-scenes exclusive on how they build their 850-horsepower 7.3L competition engines and what they go through before being shipped out to customers. It’s at that point where the trick parts and pieces are used, along with some secret tricks of the trade privy only to top-notch engine builders. An Inside Look At Swamp’s Diesel’s Trick Power Strokeīuilding big power with a diesel is not hard, unless you start to get close to the upper end of the envelope.
