Auto Machine Shop Services

Brake Drum / Rotor Resurfacing
A brake drum/rotor is not meant to last forever. They wear down a little every time you step on the brake pedal. Most modern cars come with thinner rotors to save on weight. Due to their slimness, the rotors wear out faster. For this reason, it is advisable to have the rotors and brake drums resurfaced every time you are replacing the brake pads. Resurfacing is an economical alternative to replacing the rotors/drums with new ones. If your brake rotors/drums have sufficient metal remaining with no hard spots, cracks, severe grooving, or rusting, then resurfacing is a great option. For expert resurfacing services, call 717-273-4348 or visit Trim's Automotive today.

Complete Engine Machining & Rebuild Service
We offer complete engine rebuilds from start to finish, Here at Trim's Automotive we specialize in performance, stock as well as classic and vintage engine rebuilds. Have a vehicle that is still in good shape but could use a freshen up? For all your engine rebuilding needs contact Trim's Automotive Today. 717-273-4348

Cylinder Boring & Honing
A bore is the diameter measurement of the cylinders in an engine. When the engine cylinder walls are worn or damaged, the holes must be bored & honed to make them bigger for proper performance. This is referred to as a bored engine. Boring an engine is an economical alternative to buying a new one. By boring the engine block, the engine is reverted to its good running condition. You will now have fewer repair bills, better gas mileage, and overall better performance. To have your engine bored & honed by engine experts, visit or call 717-273-4348 Trim's Automotive today. Our machine shop has the necessary machinery and staff to bore your car's engine block.

Cylinder Head Resurfacing
Head resurfacing, also known as milling is the process of ensuring that the head is flat and true when changing a head gasket. Milling the heads ensures that you get a perfect seal. When changing head gaskets, let the machine shop inspect the head and tell you if it needs milling. At Trim's Automotive, we will inspect your heads, determine whether they need milling, and resurface them. Call us today or visit our machine shop in Lebanon, PA 17046.

Driveshaft Repairs, Modification & Balancing
We build custom driveshaft's as well as repair and modify existing driveshaft's for any engine-transmission & differential application including heavy duty, muscle car, street rod, classics & late model vehicle. Driveshaft's are built with quality materials and finished balanced. Call 717-273-4348 or visit Trim's Automotive for all your driveshaft needs.

Flywheel Resurfacing
Refinishes the flywheel back to its original machined condition to remove worn and uneven surfaces. Precision flywheel resurfacing will extend the life & effectiveness of your clutch. It is recommended to resurface a flywheel whenever the clutch is being repaired or serviced. For all your flywheel turning needs, call 717-273-4348 or visit Trim's Automotive today.

Hot Tank & Sonic Thermo Cleaning
In order to properly inspect parts for machining they must first be thoroughly cleaned to determine what needs to be done. Parts cleaning is essential to most machine works. We have an array of parts cleaning equipment as well as blasting equipment for rusted and painted parts. For all your parts cleaning needs, call or visit Trim's Automotive in Lebanon, PA 17046 today.

Magnaflux & Pressure Testing
These operations are used to check cylinder heads and engine blocks for cracks and leaks. A cracked head is a serious engine problem that can lead to your car breaking down. Even if the car engine won't fail, it will definitely suffer from poor performance. The following are some symptoms of a cracked engine head: oil leaks, low engine compression (engine combustion pressure escapes), coolant leaks (leading to engine overheating), engine head smoke, and engine missing. At Trim's Automotive, we will have a knowledgeable service professional check for cracked heads on your car's engine.

Valve & Valve Seat Grinding
The main purpose of this job is to resurface the mating surfaces of the valves and their respective valve seats for these reasons: overheating, material failure, high mileage, excessive RPM, and foreign object damage. Call 717-273-4348 or visit Trim's Automotive for all your valve job needs.