Who We Are

Shepherd Engine Development, Inc. is a Solon, Iowa based Performance Engine Shop owned by Jim Shepherd and Chad Holladay.


Jim Shepherd lives in Solon, Iowa with his wife, Lisa, and two children Kylie and Connor.  Jim handles the day-to-day operation of the business and brings 17+ years of experience in building technology based performance engines that have competed in all levels of circle track racing from Sprint Cup to Hobby Stock and Drag Racing’s NHRA Pro Stock Division to Street Performance Enthusiasts.  


Chad Holladay lives in Muscatine, Iowa with his wife, Nikki and three girls Kaelyn, Anistan, and Emmry.  Chad also owns and operates Holladay Trucking, Inc. and brings strong business savvy to the company.  Chad also pilots the 32c dirt late model every Saturday at West Liberty, Iowa and select specials at other tracks throughout the racing season.


Why Us?

Committed to providing world-class technologically advanced performance engines to the racing and performance industry.