Simplex Engine & Machine
1011 Westminster St. Providence, RI 02903
Phone: 401.331.3500
Fax: 401.331.4130
ASE logoAERA Engine Rebuilders Association
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Shop Services

We are dedicated to providing our customers with a top-quality product at a competitive price. Please view our shop below and contact us for more details about our services.

Engine Remanufacturing

  • IN-HOUSE CUSTOM ENGINE REBUILDING
  • AUTO-INDUSTRIAL-MARINE-DIESEL APPLICATIONS
  • ANTIQUE AUTOMOTIVE AND TRACTOR ENGINE RESTORATION
  • FACTORY REMANUFACTURED ENGINES IN STOCK
  • 3-YEAR – 100,000 MILE WARRANTY ON MOST AUTOMOTIVE APPLICATIONS
A man examining an engine

Heavy Duty & Industrial Machining

  • IN FIELD COUNTER BORE MACHINING AND SLEEVING
  • UPPER BORE & LOWER BORE REPAIRS-CAT, CUMMINS, JOHN DEERE, DETROIT DIESEL
  • PARENT BORE SLEEVING
  • BLOCK RESURFACING
  • INDUSTRIAL AND COMPRESSOR SHAFT RECONDITIONING
  • PILOT HOLE REPAIR
  • HEAVY DUTY PARTS DISTRIBUTOR

Cylinder Head Remanufacturing

  • HEAVY DUTY HEAD RECONDITIONING
  • REMANUFACTURED HEADS IN STOCK
  • PRESSURE TESTING & MAGNAFLUX FOR CRACK DETECTION
  • PRECHAMBER FITTING
  • CRACK REPAIRING
  • SURFACING & RMS FINISH TESTING
  • GUIDE & SEAT INSTALLATION
  • MINIMUM THICKNESS INSPECTION – HEAD STRAIGHTENING
  • VALVE JOBS ON GAS OR DIESEL
  • HIGH PERFORMANCE THREE ANGLE VALVE JOBS
  • INJECTOR TUBE INSTALLATION
HEAVY DUTY HEADA man operates a machine in a factoryA man focused on operating a complex machine in a workshop setting.A man examining an engineA man examining an engine

Complete Block Service

  • BORING & SLEEVING TO 8″ DIAMETER
  • PARALLEL CYLINDER BORING
  • TWO STROKE BORING & SLEEVING
  • SUNNEN CV616 AUTOMATIC HONING
  • RACE ENGINE TORQUE PLATE HONING
  • COUNTERBORES CHECKED & RE-CUT
  • OVERSIZE DIESEL LINERS REPAIRED
  • WET SLEEVE PACKING AREAS REPAIRED
  • CRACKED BLOCKS REPAIRED & PRESSURE TESTED
  • LINE BORING & LINE HONING
  • SADDLE REPAIRS ON GAS OR DIESEL
  • SPECIAL HIGH PERFORMANCE CAP INSTALLATION
  • FLYWHEEL RESURFACING – PILOT HOLE REPAIR
A close-up of a cylinder block filled with a significant amount of oil, showcasing its mechanical components.A man repairs a large engine in a workshop, surrounded by tools and machinery.A large metal cylinder block featuring numerous evenly spaced holes throughout its surface.A man is standing beside a machine

Crankshaft Grinding & Connecting Rod Reconditioning

  • INDUSTRIAL & COMPRESSOR CRANKS
  • POLISHING & FILLET RADIUS POLISHING
  • JOURNAL REPAIRS BY ‘CRANK WELD’ PROCESS
  • MAGNAFLUX FOR CRACK DETECTION
  • SPUN RODS REPAIRED; BIG ENDS REBUILT
  • PIN BUSHING INSTALLATION
  • CENTER TO CENTER PIN BORING
  • WET MAGNAFLUXING / CRACK DETECTION
  • NEW PISTONS PRESSED ON RODS; OLD ONES PRESSED OFF
  • SPECIAL HIGH PERFORMANCE BOLT INSTALLATION
Crankshaft Grinding & Connecting RodGrinding & Connecting Rod Reconditioning

We specialize in selling and servicing a complete line of remanufactured products, including cylinder heads, crankshafts, connecting rods, and rebuilt engines. Our offerings are underpinned by the skills of our highly trained and knowledgeable staff. With over 100 years of combined experience in our machine shop and parts department, we are confident in our ability to meet all your engine part and machining needs.

A man operates a machine in a factory, focused on his task amidst industrial equipment and surroundings.

Commitment to Quality and Customer Satisfaction

Our success over the past 85 years and across three generations is rooted in our unwavering commitment to quality, customer satisfaction, and the use of cutting-edge machinery and techniques. We take immense pride in our rich history, as it enriches our expertise and drives our continued excellence. Simplex Engine & Machine, Inc. is the best-equipped facility in New England for handling automotive and heavy-duty parts and services, offering the assurance that we will help you complete your projects on time with accuracy and precision.

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Contact Us

Our team looks forward to assisting you and providing solutions that align with your engine parts or machining services needs. Get in touch with us today!