Engine Builder T-Shirts
Description: Powroll Performance was founded in 1964 by dirt bike enthusiast Paul Olmstead in Bend, Oregon. Little did he know that the side business he started in a cinder block building behind his house would go on to become one of the longest-running performance companies in the motorcycle industry. Paul devised a way to shorten OEM connecting rods, creating a simple and less expensive way to build stroker cranks for OHC four-stroke engines. Powroll's stroker cranks made great power while increasing reliability and did so at a reasonable price with little to no additional modifications, making them wildly popular. Cranks were Powroll's primary product, but they built up a pretty extensive catalog of performance parts over the years.
Description: During World War II, when new cars were scarce, Jasper, Indiana car dealership owner Alvin C. Ruxer started an engine rebuilding operation at his dealership to help keep customers on the road. What began out of necessity to combat wartime shortages became a well oiled machine by 1946, and Jasper was remanufacturing engines of all makes to manufacturer specifications using a standard set of new parts while recycling major castings. A dedicated building was constructed in 1951, and in 1957, the company began remanufacturing transmissions and other drivetrain components. This design includes Jasper's panther mascot that was often used in motorsports.
Description: Celebrate the grit and ingenuity of post-war America with this bold tribute to Jasper Engines & Transmissions. Featuring the iconic panther leaping across a distressed red "JASPER" logo, this design honors the legacy of engine remanufacturing born in Jasper, Indiana during WWII. Perfect for gearheads, vintage racing fans, and anyone who appreciates classic American craftsmanship. Whether you're under the hood or hitting the car show circuit, this tee brings horsepower heritage to life.
