There have been very few engines that make as large an impact on the automotive world as the GM LS has. From drifting to road racing, desert racing to NASCAR, the modern small-block has found its niche in just about every form of motorsport. But one area where it has yet to make a splash is dirt oval racing. And Bryce Koone of All Out Performance is looking to change that.
As Bryce puts it, “I have had the idea of building the LS motor with EFI for several years. Sprint car racing has evolved. More classes are having open engine rules. This made it an easy decision to put my idea out in the open for other people to try.”
His shop All Out Performance has been building race engines for several years. Bryce wanted to apply his knowledge and experience to something new. “I chose this engine package because I knew of the horsepower potential and the reliability of the engine.”
Originally seeking out a test car for their new package, he struggled to find someone willing to put their existing engine to the test in his new combination. “At the point where we weren’t able to find anyone, I decided to purchase a car and put the motor in it. Since then, I have been taking it to various tracks to put hours on the motor. Making sure everything would be optimal for a future customer.”
Bryce has been putting this motor through a real torture test at a variety of tracks around the southern U.S. Proving to customers that this combination works and works well. A true testament to his work. And further proof that the LS architecture can be adapted to many forms of racing.
This mighty mouse is a 408 cubic inch LS, using a 4150 style intake with a 4bbl throttle body and multi-port rails. It runs a custom grind solid roller camshaft with shaft-mounted roller rockers and a forged rotating assembly. Bryce used the best parts available and took the extra step to cerakote the pistons, valves, combustion chambers and runners. This helps with heat build-up and protects the engine internals from dusty race conditions. “We also chose to cerakote the outside of the engine. This is to give it a clean look and protect it from the dirt and elements during races.”
Bryce went with a Haltech Elite 2000 ECU on this build. It’s also utilizing a WB2 dual wideband controller and an iC-7 digital dash. He wired the car himself and enlisted the help of Joe Woods (Dominator of Street Outlaws fame) to handle the tuning.
He and his crew at All Out Performance fabricated everything in-house, and the quality shows. We asked Bryce if he has any future plans for the car. “We will continue running it at races, to familiarize the public and future customers with the benefits of this engine platform.”
Overall, this is one of the coolest “LS swapped” vehicles we have seen in recent years, and are glad to be the engine management of choice. We wish Bryce and All Out Performance the best of luck as they continue to test this new engine platform. We look forward to seeing more people jump on board the LS Sprint Car movement!