DUFFIN ENGINE

Serving San Antonio with Precision Engine Machine Work – since 1972

DUFFIN AUTOMOTIVE ENGINE REPAIR SERVICE – MACHINE SHOP

We have been serving San Antonio and South Texas for the last 46 years, providing precision engine machine work and engine parts. Through excellent customer service and attention to detail our goal at Duffin Engine Service is to exceed your expectations.

Duffin Engine Service is open Monday through Thursday 8:00 am to 5:00 pm. Friday 8:00 am to 3:00pm. Located at 1227 Hallmark,three blocks inside Loop 410, near Airport Blvd. [click for directions]. We offer engine machine shop services for Automotive, Over the road diesel trucks, Industrial, Marine, High Performance and small engines. Duffin Engine Service is committed to keeping current with the latest technologies, to accomplish this we are a member of the Automotive Engine Rebuilders Association(AERA).

Service we offer

  • MAGNAFLUXING
  • CYLINDER BORING & HONING
  • SURFACING & COUNTERBORES MACHINED
  • ALIGN BORING & ALIGN HONING
  • UPPER & LOWER BORE SLEEVING
  • MAIN BEARING BORES & MAIN CAP SLEEVING
  • CAM BEARING BORE SLEEVING & ALIGN BORING
  • PRESSURE TESTING & CASTING REPAIRS.
  • MAGNAFLUXING
  • BIG END RECONDITIONING
  • REBUSH & PIN FIT SMALL ENDS

 

  • MAGNAFLUXING
  • STRAIGHTENING
  • THRUST REPAIR
  • MICRO-POLISHING
  • VALVE JOBS
  • SURFACING
  • VALVE GUIDE REPLACEMENT & REPAIR
  • VALVE SEATS INSTALLED,
  • PRESSURE TESTING & ALUMINUM HEAD WELDING (CASTING REPAIR)
  • VAT CLEANING CAST IRON & ALUMINUM
  • RUST STRIPPING
  • GLASS BEAD & SHOT PEENING
  • ULTRA SONIC CLEANING
 

 

  • FLYWHEEL GRINDING
  • ENGINE BALANCING
  • WELDING & BRAZING (STEEL & ALUMINUM)
  • TRANSMISSION & FLYWHEEL BEARING BORE SLEEVING
  • BROKEN BOLT REMOVAL & THREAD REPAIR
  • BROKEN TAP & EZ OUT REMOVAL (METAL DISINTEGRATING)

Gallery

AERA is our source for technical and service bulletin information, always keeping us up to date.

Contact form

Visit us

1227 Hallmark Dr, San Antonio, TX 78216, USA

Call us

+1 210-341-8183