San Diego's Trusted Engine Re-Manufacturing and Machine Shop Specialists

North County 760-745-4104 N. County Inland 858-888-7430 South County 619-915-6182 Temecula 951-900-4760

About MJM

We have been in business since 1993 and have been growing right from the start. In January 2006 we moved to a larger facility to accommodate company growth and just recently we have expanded again. The new facility is right across the street from our current location and will give us additional parking and work space. We strive to provide the best customer service, including being accessible after the sale. We employ knowledgeable engine rebuilders, installers and sales staff.

Also we offer a 3 year, 100,000 mile warranty for in-house installed engines and a 2 year, 24,000 mile warranty for customer installed engines.

Every rebuilt engine and remanufactured engine we build begins with thorough cleaning, inspection and machining of all remanufacturable castings. All cast iron components are magnaflux to guarantee integrity. Engine blocks are precision bored, decked and diamond honed to the specified RMS. Crankshafts are ground and polished to an 8-12 RMS finish. Valve seats are precision cut to three angles, and heads are resurfaced and vacuum tested. The following components are replaced as part of the manufacturing process:

  • New Pistons
  • New Rings
  • New Timing Components
  • New Freeze Plugs
  • New Installer Gasket Set
  • New Main Bearings
  • New Rod Bearings
  • New Cam Bearings
  • New or Reground Cam Shaft Cam core may apply
  • New Hydraulic Lifters
  • New Oil Pump
  • Remachined Block, Crank Shaft, Connecting Rods and Cylinder Heads

Nothing is left to chance. Our quality machining process would be wasted if we didn't also use the finest engine parts available. Only parts from proven quality brands such as Fel-Pro, Sealed Power, Federal Mogul, Dyna gear, Clevite, Top Line and Melling go into our engines.

If you are looking for performance parts, we offer distinguished brands such as Speed-Pro, Lunati, TRW, Melling Performance and Keith Black.

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MJM Engines Location