For over 38 years, Sem Powertrain – A Division of Scarborough Engine has been providing consultations, diagnosis and fault analysis services for luxury and import auto manufacturers. Call today to find out more.We provide cylinder head rebuilding, cylinder resleeving, engine balancing, fault diagnosis, cylinder re-boring, and failure analysis. We also go through the factory complaint process. Our team is equipped and skilled in OE quality surface finishing as well. more...See more text