GHPM is a machine shop located in Columbiana Ohio providing precision machining for gas and diesel engines, welding and aluminum block and head repair. GHPM is also a certified dealer in aftermarket auto parts and PennGrade Oil.
MANUFACTURERS WE CARRY
Performance. Precision. Perfection. From PennGrade 1 (commonly referenced as Brad Penn) for high performance vehicles to PennGrade Motor Oil for the everyday driver, consumers equate the PennGrade brand with quality and performance. Additionally, all PennGrade and PennGrade 1 products are manufactured under a very strict quality management system designed to facilitate continuous improvement and effectiveness, meaning a consistent quality and customer satisfaction.
The Ultimate in Buick V6 & V8 High Performance Parts. The Buick Power Providers. Featuring Stage 1, 2, 3, 4 Aluminum Cylinder Heads, Intakes, Headers, as well as many stock and restoration type drivetrain components. We are also the leader in Mandrel Bent exhaust systems for GM Muscle Cars. Check out our World Famous Rear End Girdles, for most popular differentials!