Several modifications to Roger Butzen’s Challenger V8 included his custom-designed Chevy 283 overhead valve conversion and a Roots style supercharger. Built in 2000, he dubbed his creation the Cadillac-Chevy Hybrid. It became a hit among model engineers nationwide, so he donated his designs to the Bay Area Engine Modelers (BAEM) where a few more were built by members of the club. This engine is the pioneer of what eventually evolved into the Black Widow V8, which was available as a casting kit from the BAEM club. Roger’s Challenger V8 is 18”-long, 13”-wide, 17”-high, and weighs 47 lbs. The engine is on loan courtesy of the Engine Collection of Paul and Paula Knapp.
Challenger V8 Overhead Valve Conversion
