713-923-8888 Toll Free 800-562-3609 mike@tbolt.net

Why Use Thunderbolt Auto Repair

Why Should You Use Thunderbolt Auto Repair?

We provide the most bang for your buck. Rather than breaking the bank. Get the most in transmission repairs. It’s easy! Pay less for the same repairs.

Call Thunderbolt today for your engine problems. That’s because we have the crew. We’ll fix any of your problems. No transmission repairs are a problem for us.


First of all, we have been in business for years. Therefore we are the leader in auto repair. That’s because our company has been remanufacturing engines and transmissions for over 85 years. So you get the most with Thunderbolt.

Although competitors project lower costs, you lose quality. Rather than settle, get the most for your engine. We never settle for less. Most of all, we give our all to your engine!


Because we are not a re-seller. Companies buy cheap inferior engines and mark them up. Even up to 50% or better and sell them to you. Questions or problems are sent back to whom they bought the engine from.

Maybe dealing another company directly isn’t worth your time. We sell our products directly to you and not through some middleman or a third party web site.


Our machinery is all new and state of the art. None of our equipment is over 5 years old. As newer equipment becomes available we acquire it.

We are steadily replacing any outdated machinery with newer machinery. More sophisticated equipment means you receive higher quality. You receive the same work for less cost.


The company president, Harry Hartley II sits on the board of directors of Production Engine Rebuilders Association. Only an elite few remanufacturers may belong.

Mr. Hartley is in the machine shop everyday, personally assisting the remanufacturing process to further ensure that you are receiving a high-quality remanufactured engine or transmission.


Our prices are extremely reasonable. Because we are not distributing through a middleman, we are able to get you factory direct pricing. We do all the same procedures as many remanufacturers. We sell our engines and transmissions for half the price of other remanufactured organizations.


Every engine is completely disassembled. As a result you get the most which is what makes us the leader in Texas. Due to our process, you receive the highest quality cleaning for any engine.

Blocks, heads, connecting rods, crankshafts, and camshafts for domestic engines are cleaned in the Bayco Bake Oven. Shot blasting equipment engines are completely cleaned through.


Crankshafts are precision machined to exact tolerances with no odd size bearings or journals. Thrust surfaces (domestic engines) are machined in a two-step process to provide precise surface finishes for smooth engine operation and reduced thrust bearing wear.

Every journal is inspected and measured with critical accuracy. After machining the oil holes are chamfered to improve lubrication. Every journal is polished to a smooth finish for long bearing life. Crankshafts are thoroughly cleaned. We put special emphasis to flushing and brushing out oil passages to remove any contaminants.


Camshafts are inspected for wear. Next dimensional accuracy, and gauged for straightness. Camshaft lobes are carefully machined to correct specifications. Each shaft is Parco-Lubricated to improve lubricant adhesion.

This is due to break-in. Any camshaft not meeting Thunderbolt‘s exact specifications is replaced. This is so they can perform at the highest rate.


Cylinders are bored. Therefore they are diamond honed to exact specifications. So the cylinder finish and size are closely monitored to industry surface finish standards. This is due to accuracy and consistency through Statistical Process Control.

This assures smooth piston travel and engine performance. Thunderbolt guarantees no odd size cylinders. The block to head mating surface is closely inspected. Furthermore it is resurfaced. This is done as required to provide the correct surface finish for today’s gasket materials.


Connecting rods are machined. So then they are gauged. Also within a half a thousandth for improved operation. As a result they are used in today’s engines.

Rods as a result are carefully machined to avoid taper. In addition this maintains the standard diameter. Therefore it matches the original equipment. All rods are checked for bend and twist to assure smooth operation.


While heads are carefully inspected for cracks and flaws, damages can still be missed. As a result we provide procedures such as magnetic particle inspection and pressure testing. Every head is resurfaced.

While exact dimensional tolerances are examined, maybe the surface finish isn’t carefully monitored. Seems like other companies are cutting corners.

This is needed for proper sealing with the block.

Valve seats and guides are machined to exact specifications. Sometimes replaced to assure correct valve alignment, seating, and optimum engine performance.


In addition to our regular work, every engine is precisely assembled by Thunderbolt. Most of all our builders are fully qualified so you get the most.

We pay attention to such details as a final wash of new and machined parts. Also pre-lubricated camshafts, pistons, and crankshaft. Therefore journals assure a clean, smooth running engine that performs to your expectations.


Thunderbolt live tests every popular engine. As a result you get the most. This includes complete domestic engines. We cover recorded inspections of temperatures, oil pressure, vacuum pressure, and compression.

Imported engines are tested for correct oil pressure, compression, torque to turn and proper oil pump operation. Thunderbolt‘s testing is one of the many ways we assure your satisfaction.


Furthermore, our processes are continually monitored. This is through Statistical Process Control. It helps assure accurate machining, smooth engine performance and complete customer satisfaction.


New Domestic Engine Parts
  • Pistons, Pins & Lock Rings
  • Piston Rings
  • Piston Pin Bushings
  • Main Bearings
  • Hollow Push Rods
  • Camshaft Bearings
  • Camshafts (New or Refurbished)
  • Rear Main Oil Seal
  • Timing Gear Or Chain
  • Intake & Exhaust Valves
  • Valve Springs
  • Solid Lifters
  • Valve Keepers & Seals
  • Spring Retainers
  • Valve Guides (As Applicable)
  • Rocker Arm Assemblies (New Or Re-manufactured)
  • Rod Bearings
  • Cylinder Head Gaskets
  • Oil Pan Gaskets
  • Timing Gear Cover Gaskets
  • Water Distribution Tubes (As Applicable)
  • Expansion Plugs
New Import Engine Parts
  • Pistons, Pins & Lock Rings
  • Piston Rings
  • Piston Pin Bushings
  • Main Bearings/Camshaft Bearings
  • Camshaft Bearings
  • Rear Main Oil Seal
  • Timing Gear Or Chain
  • Intake & Exhaust Valves (New Or Re-Manufactured)
  • Valve Springs (New Or Re-Manufactured)
  • Solid Lifters
  • Valve Keepers & Seals
  • Spring Retainers
  • Valve Guides (As Applicable)
  • Rocker Arm Assemblies (New Or Re-manufactured)
  • Rod Bearings
  • Cylinder Head Gaskets
  • Expansion Plugs

Install Thunderbolt so you have an engine with confidence.


Thunderbolt offers immediate availability on most popular engines. This helps because we ship coast to coast and beyond. We’re here to help!

Anytime you need engine work, give us a call. Thunderbolt works with the true Texans. We have over 85 years of experience.

Next time you are having car trouble, think Thunderbolt Auto Repair! Give us a call today!