Diesel Engine Machine Shop in Dallas

South Houston Engine has been proudly serving our fellow Dallas residents, Texans, and customers across the country since 1983. Our locally owned, locally operated diesel machine shop is fully licensed, bonded, and insured. We only allow the most qualified, professional, and skilled individuals to join our team because we have such a stellar reputation to uphold – including an A+ Rating from the Better Business Bureau. Our customers trust us to provide the best craftsmanship through every diesel engine service, and our goal is to surpass their every expectation time and time again. We even issue a written warranty on all engine and machine work, giving you complete peace of mind about the quality and reliability of our work. Give us a call today so we can discuss your needs and show you what sets us apart as a household name in the Dallas region!

Diesel Engine Services

Diesel trucks play a very important role in our great country. They work hard to bring us everything, from food to clothing to vehicles and far beyond. As they journey tirelessly against roads and highways near and far, they endure a great deal of wear and tear. Their engines are particularly prone to breakdowns because of their constant operation. For this reason, diesel engines require meticulous care to maintain peak performance and reliability. When vital diesel engine components fail, the options are typically either rebuilding or replacing the engine. South Houston Engine is best known for our diesel engine rebuilding service. We are proud to get America’s incredible truckers back behind the wheel of their essential machines as quickly as possible and help them avoid unnecessary downtime.

From the modest, 2-cylinder Kubota to the robust V-12 Caterpillar, our skilled diesel engine repair mechanics are here to bring their expertise to the job. No matter the size or complexity of your engine, we’ll take an individualized approach to addressing your needs. We aren’t a broker or a reseller – we specialize in both diesel engine remanufacturing and engine production as part of our hands-on approach. Every engine that leaves our diesel engine machine shop is a product of our meticulous craftsmanship. We understand the urgency of getting your diesel truck back on the road promptly, which is why we offer nationwide shipping at discounted freight rates, passing our savings on directly to our valued customers.

During engine reassembly, we adhere to stringent quality controls that ensure your engine meets or exceeds its original factory specifications. Our commitment to excellence extends to our rigorous testing procedures, which are conducted prior to the engine’s release to guarantee its reliability and performance. From thorough cleaning and inspections to precise machining and meticulous assembly, every step of the process is managed with care by our skilled technicians. Our comprehensive written warranties provide full coverage for all our services. Whether your diesel engine requires a complete overhaul or a minor tune-up, we are the trusted team equipped to handle the task with precision and expertise.

Block Boring

Block boring is a diesel engine machining process that restores cylinder size and shape by removing imperfections like scratches and scoring. This ensures proper piston ring sealing to enhance engine performance and longevity during rebuilds or overhauls.


Honing is a precise process we use in the process of diesel engine machining in Dallas that smoothes cylinder walls to remove imperfections like scratches and grooves. This ensures proper piston ring seating and promotes oil retention for optimal engine performance and longevity.

Align Boring

Align boring restores proper alignment and dimensions to main bearing bores. It is crucial for smooth crankshaft rotation and optimal performance. It corrects misalignment and wear, ensuring reliable engine operation during diesel engine rebuilding.

Counter Boring

Counter boring is a Dallas diesel engine machining technique that creates recessed areas for larger fasteners, bearings, or seals in components like cylinder heads or engine blocks. It ensures proper fit and function, addressing issues like damaged bolt holes or creating flush surfaces for valve seats or injector sleeves. It is crucial for reliable engine performance.

Cylinder Head Rebuilding

Cylinder head rebuilding entails refurbishing this engine component by disassembling, cleaning, inspecting for damage, machining or resurfacing, replacing worn parts, and reassembling. It is essential for peak engine performance, sealing integrity, and longevity.

Engine Block Rebuilding

Our Dallas engine block rebuilding process involves restoring the main body by disassembling, cleaning, inspecting, machining cylinder bores, and replacing worn components. The goal is to ensure structural integrity and performance for reliable and efficient operation.


O-ringing enhances sealing by inserting O-rings into the cylinder head or engine block. It’s commonly used to prevent coolant or combustion gas leaks.

Crankshaft Inspection

Crankshaft inspection involves thoroughly examining the crankshaft for signs of damage, wear, or misalignment. This process ensures the crankshaft’s integrity and functionality, which is crucial for the engine’s performance and longevity.

Crankshaft Rebuilding

Crankshaft rebuilding restores the critical rotating component of the engine. This involves disassembly, cleaning, inspection, machining, and replacing worn parts, such as bearings. The aim is to ensure proper balance and dimensions, both of which are essential for optimal engine performance and longevity.


Grinding is the process of machining or smoothing surfaces, such as cylinder heads or crankshafts, to remove imperfections or achieve precise specifications. This process helps to restore proper functionality and performance to engine components.


Polishing involves smoothing surfaces to improve finish and reduce friction. This enhances performance and durability of components like crankshafts, camshafts, and cylinder heads.


Straightening is used to correct bends in components, like crankshafts or connecting rods, to ensure optimal alignment and function. This restores the component to its original shape, enhancing engine performance and longevity with specialized equipment.

Crack Detection with Sonaflux

Sonaflux crack detection uses specialized equipment to detect defects in components, like cylinder heads or engine blocks, using ultrasonic waves. This non-destructive testing technology ensures component integrity, enabling timely repairs to prevent catastrophic failures and optimize engine performance.


Magnaflux is a non-destructive testing method for detecting cracks or defects in metal components. It involves applying a magnetic field to the component and then dusting it with a magnetic powder. Any irregularities in the metal’s surface will cause the powder to gather, which highlights the flaw for easy detection.

Pressure Testing

Pressure testing involves subjecting engine components, like cylinder heads or engine blocks, to high pressure to check for leaks or weaknesses and ensure their integrity and reliability. This is crucial for diesel engines, where proper sealing is essential for optimal performance and safety.

Thermal Cleaning

Thermal cleaning uses heat to eliminate contaminants from components, like cylinder heads and pistons. It involves heating the parts to high temperatures and removing buildup without chemicals or abrasives. This method efficiently prepares components for inspection, machining, or rebuilding.

Ultrasonic Cleaning

Ultrasonic cleaning in diesel engine repairs utilizes high-frequency sound waves to agitate a cleaning solution, generating intense cleaning action. Submerging engine components like injectors and valves allows the waves to reach intricate crevices, removing contaminants such as dirt and carbon deposits. This method effectively restores parts to pristine condition, enhancing engine performance and longevity.


Blasting (often called “sandblasting”) involves high-pressure projection of abrasive media onto engine components to remove contaminants. It’s a common method for preparing parts for painting, coating, inspection, or rebuilding.

Jet Spray Cleaning

Jet spray cleaning uses pressurized water or solvent to remove contaminants like dirt, grease, and oil from engine components. It’s ideal for delicate parts and is a standard step in cleaning before inspection, machining, or rebuilding.

Connecting Rod Reconditioning

Connecting rod reconditioning involves disassembling, cleaning, inspecting, resizing, and replacing bearings as needed to ensure proper alignment and reduce vibration. This vital process extends the engine’s lifespan and is a standard step to help with maintaining performance and reliability.

Flywheel Grinding

Flywheel grinding restores the flywheel’s smooth surface using a specialized machine. This ensures proper clutch engagement, prevents slippage, and maintains reliability. It is common during clutch replacement or diesel engine rebuilding in Dallas for performance upkeep.


Balancing ensures even weight distribution and alignment of rotating components, like the crankshaft, pistons, and connecting rods. This minimizes vibration, reduces wear, and enhances performance and durability. Balancing may involve adjusting weights or positions of components, which is crucial for smooth operation and longevity in engine rebuilding or repair.

Electronic Bolt Extraction

Electronic bolt extraction uses specialized electronic tools to loosen stubborn bolts without damaging surrounding parts. These devices apply controlled force or vibration, making it a useful tool for removing corroded or overtightened bolts. They expedite repairs and reduce the risk of component damage during disassembly or rebuilding tasks.


Milling is a machining process that shapes or modifies engine components by removing material with a rotary cutting tool. It’s crucial for creating flat surfaces, cutting slots, or achieving precise dimensions on parts like cylinder heads, engine blocks, or crankshafts to ensure they meet specifications and perform optimally.


Surfacing uses specialized equipment to machine engine components, like cylinder heads or engine blocks, for a smooth and flat finish. This removes imperfections and allows for proper sealing and optimal performance by providing a uniform mating surface for gaskets. Surfacing is critical in repairs or rebuilds to maintain reliability and efficiency.

Align Honing

Align honing precisely aligns main bearing bores in an engine block. It involves the use of a honing machine to remove material and ensure perfect alignment and concentricity. Common during an engine overhaul and rebuild, it corrects misalignment that is often caused by wear or assembly issues. It also optimizes performance and longevity by reducing friction.

Call South Houston Engine today at (713) 910-1212 and speak with one of our experts about how we can meet your diesel engine needs!