Al Parker, from Al Parker Engines, joins Keith Jones and Joe Castello on Hidden Horsepower. Parker gives the details of some of his projects, and gets specific on several of the missteps he believes have been a challenge to Sprint Car racing and motorsports in general. Al also gives the details of a hurricane like event that occurred in Newton, Iowa while he was making dyno pulls.

John Callies, former head of Pontiac Motorsports and high performance manufacturing pioneer, joins Lake Speed Jr. and host Joe Castello for a discussion of his storied career. From his work in NASCAR, NHRA Drag Racing, and the Indy 500, to Callies Crankshaft and Morel Lifters, Callies covers a lot of ground. The guys recap the Engine Peformance Expo from early January 2021 and give some advice to the next generation.

Karting legend, Lynn Haddock, tells his amazing life story. This episode is loaded with lessons that are extremely valuable. Lake Speed Jr. and Joe Castello dive into the story of how two Americans, Lynn and Lake's dad, Lake Speed went to Europe and won the 1978 World Karting Championship over a field that included Ayrton Senna.

Chris Holbrook reveals his latest project, an all billet Whipple supercharged Coyote designed for Pro Mod racing! Keith Jones and Joe Castello pepper the Ford engine expert with questions about his expectations for this new project that is schedule to debut in 2021.

Total Seal Holiday "Family Reunion" with Matt Hartford, Keith Jones and Lake Speed, Jr., hosted by Joe Castello. The guys look ahead to 2021 and look back at the best of 2020 on this special episode broadcast "live" in the Hidden Horsepower Facebook group.

Dean Baker from Joe Gibbs Racing Motocross gives an inside look at making horsepower in 2 and 4 stroke engines. Lake Speed Jr. and host Joe Castello dig into Dean's background with some of the greatest riders in history, and even ask the ultimate question; Who is the GOAT?

Judson Massingill, co-founder of The School of Automotive Machinists and Technology discusses the school, his students, and what it takes to be successful as a machinist in the modern world. Keith Jones, director of Technical Sales at Total Seal, and host Joe Castello find out what it takes to make the grade at SAMTech.edu

Keith Jones, Director of Technical Sales for Total Seal, joins Joe Castello for a deep dive into the Myths and Misconceptions related to Gapless piston rings. Many questions are answered, dive in.

Kenny Duttweiler, engine builder for the record breaking Speed Demon streamliner driven by George Poteet, discusses the effort that went into the speed run of 470.015 mph at the 72nd annual Speed Week at the Bonneville Salt Flats in August, 2020. Kenny, a legend known for his success with "boosted" engines reveals some of his secrets and gives advice to the next generation of engine builders.

Joey Arrington reflects on his career, and shares wisdom he's acquired along the way. The common thread through this episode is the evolution of technology from NASCAR race winning junkyard engines to 1000 HP grocery getters, Arrington continues to be in the middle of it all. Advice on "what to do" coming from Maurice Petty and a little what "not to do" from Joey, with the result being half an engine in a garbage can. You'll love this one! Lake Speed Jr. Co-hosts.