Services
About Cosani Engine and Head Rebuilders
Cosani Engine and Head Rebuilders is a respected, Houston-based machine shop with over three decades of experience in engine and cylinder head restoration. Serving both individual customers and commercial accounts, Cosani specializes in complete engine rebuilds, precision machining, and high-performance upgrades. The company is known for delivering detailed, reliable work with an emphasis on long-term performance, whether the job involves everyday commuter vehicles or heavy-duty industrial engines.
Complete Engine Rebuilding Services
Cosani offers full-service engine rebuilding for a wide range of applications, including gasoline, diesel, natural gas (CNG), and heavy-duty engines. Each rebuild begins with a thorough teardown and inspection. Components are measured and machined to exact tolerances, with critical parts replaced or restored to meet OEM or upgraded specifications. Engines are then reassembled with new seals, gaskets, and performance-verified internals. These rebuilds are not only a cost-effective alternative to new engines but are also designed to restore or improve original performance.
Cylinder Head Reconditioning
Cylinder head services are a major part of Cosani’s operations. The shop handles all aspects of head repair and machining, including resurfacing, valve jobs, guide and seat installation, crack repair, and pressure testing. Whether dealing with aluminum or cast-iron heads, the team ensures precise tolerances and structural integrity throughout the process. These services help resolve common issues like loss of compression, overheating, and valve train failure, effectively extending the life of the engine.
In-House Precision Machining
A standout feature of Cosani is its fully equipped, in-house machine shop. Equipped with industry-standard machinery, the team performs cylinder boring and honing, crankshaft balancing, align honing, and deck resurfacing. This allows for complete control over quality and tolerances during every stage of the rebuild. By keeping all machining work internal, Cosani ensures consistency, accuracy, and quicker turnaround compared to shops that outsource this work.
High-Performance Engine Builds
Cosani is also known for building engines that go beyond factory specifications. For customers seeking increased horsepower, torque, or efficiency, Cosani offers custom engine builds that include upgraded internals, performance camshafts, modified cylinder heads, and enhanced fuel or ignition systems. These builds are ideal for enthusiasts, off-road applications, or specialized commercial vehicles. Most high-performance or long-block rebuilds come with a multi-year warranty, depending on application and build level.
Location and Contact Information
Cosani Engine and Head Rebuilders is located at 9501 Summerbell Lane, Houston, TX 77074. The shop operates Monday through Friday from 9:00 AM to 6:00 PM and Saturday from 9:00 AM to 1:00 PM. Customers can call (713) 774-4949 for estimates, scheduling, or service inquiries.
Customer Reviews and Reputation
Cosani has built a strong reputation across Houston for its consistent, detail-oriented service. Customers frequently highlight the shop’s quality workmanship, fair pricing, and ability to handle challenging engine jobs. While some reviews note that turnaround times can be longer due to the depth of work involved, the majority of clients report satisfaction with the end results. The shop’s experience with both foreign and domestic engines, as well as industrial applications, sets it apart from general automotive repair shops.
Why Choose Cosani
What makes Cosani Engine and Head Rebuilders stand out is their deep expertise, commitment to precision, and broad technical capability. From simple head repairs to full engine overhauls and performance upgrades, they deliver reliable, long-lasting solutions. Their in-house machining, multi-decade experience, and willingness to take on complex jobs make them a trusted partner for individuals, repair shops, and businesses throughout the Houston area.