JMS Racing Engines is a trustworthy and genuine company, considered the number one custom engine building, refurbishing, and upgrading business. Customers report exceptional craftsmanship and quality in builds like full small block Chevys, with engines having no issues period. The shop handles projects from completely disassembled motors, working within budgets and timelines, often ready in two weeks. They perform repairs and upgrades, salvaging blocks and sourcing parts when needed. The team takes time to discuss details, walk clients through the shop processes, and provide clear explanations. Reviewers are happy with the services, state they will absolutely use them again with no questions asked, and recommend them for any classic car or anything that has a motor.