Things get started with a Powerflo lift pump in the factory tank, with one of Fleece’s auxiliary fuel filter and line kits mounted between the lift pump and a single Powerflo 750 CP3. To take advantage of their quick injection rate and also to provide room for future horsepower growth, a set of 5.9Lderived, 100-percent over injectors were obtained from S&S. Fine-tuning of the engine is made possible through the use of a 5.9L ECM.
SECOND-GEN TURBO SWAP
With the finished product destined to live in Kenneth’s native Wyoming, adequate airflow without sacrificing drivability was a key stipulation in the build. Sizing a turbocharger for a single turbo application that needs to be responsive at 7,500-feet of elevation but that can also support more than 700-rwhp can be a tall order. However, Fleece met Kenneth’s needs with an S463 that makes use of an 83mm turbine wheel and a non-wastegated .90 A/R exhaust housing. Accommodating the Borgwarner charger is Fleece’s popular second-gen turbo swap system, which (in addition to facilitating the use of an S400 on a 6.7L common-rail) includes a T4 Steed Speed exhaust manifold, 4-inch stainless downpipe, and the company’s
If you thought the engine was overkill, Kenneth’s transmission of choice will seem downright bombproof.
The 48RE pieced together at Fleece boasts a laundry list of top-of-the-line parts from Sun Coast—including the infamous OM3GA input shaft. Accommodating the larger input shaft is a 27-spline triple-disc Sun Coast converter with a billet stator and 2,200-rpm stall speed, and larger diameter intermediate and output shafts are also present. The bigger output shaft called for sourcing an NP271 transfer case. The truck’s exterior might’ve been treated to the works, but inside the cab you’ll find a completely untouched original interior, aside from the aforementioned manual shifter install. Only on a low-mile, garage-kept second-gen will you see an interior this immaculate. The fact that the Laramie trim leather driver seat has just 88,250 miles on it has certainly helped in its preservation. Full control over the built 48RE’S shift points is available courtesy of a Sun Coast manual valve body and this Kwik-shifter I shifter from Precision Performance Products. Fleece whipped up the shifter mount and handled the clean installation. Use of an Edge Insight CTS2 monitor and its corresponding add-ons allows Kenneth to keep an eye on EGT, boost, rail pressure, and anything else the ECM sees. Speaking of the ECM, it’s off of a 5.9L common-rail, chosen for calibration purposes.