195 Oakdale Rd, North York 416-533-0909 main@tshauto.com Mon–Fri: 10:00 AM – 7:00 PM Instagram YouTube Facebook X

Machine Shop Built for Engines

Rottler F67A CNC + diamond hone — high volume rebuilds, cylinder sleeving, fleet contracts, and repeatable quality at scale.

TSH Auto Rottler F67A CNC machining centre

CNC Precision on Iron & Aluminum

The F67A is a CNC-controlled multi-purpose machining centre. It lets us bore, surface, line-bore and machine blocks, heads and custom work to tight, repeatable tolerances.

  • Cylinder boring on iron & aluminum blocks
  • Deck & head surfacing
  • Main line boring & align honing prep
  • Lifter bore, cam tunnel & custom ops
  • CNC-repeatable — every part matches the last
Honing machine at the TSH Auto machine shop

Controlled Bore Geometry and Finish

Diamond honing gives us repeatable geometry, clean crosshatch and the plateau finish modern low-tension rings actually need. Whether you're restoring worn OEM bores or finishing a fresh sleeve, the bore is round, straight and ready to run.

  • True round / true straight cylinders
  • Controlled crosshatch angle & plateau finish
  • Optimized for modern low-tension ring packs
  • Iron, aluminum and Nikasil-friendly workflows

Volume Rebuilds with Documented Quality

We are set up for consistent throughput. We process batches, sleeve blocks and deliver repeatable results for performance shops, fleets and contract partners.

Batch Rebuild Programs

Structured intake for multiple engines per month with predictable lead times and standardized production flow.

Cylinder Sleeving at Scale

Iron and ductile sleeve installs for damaged or worn bores, including repeated platform runs and oversize strategies.

Cylinder Recovery

Restore scored or tapered cylinders with boring, honing, and geometry correction to bring blocks back to service spec.

Leasing and Fleet Support

Rebuild and reman support for leasing companies, fleet operators, and repair networks that need stable capacity.

QC and Documentation

Measurement logs, tolerance verification, and final checklists for every unit so quality is traceable batch to batch.

Turnkey Long Block Supply

Complete rebuilt long blocks and short blocks ready for installation, including contract volume planning.

Contract and Volume Capacity

We are open to larger supply and rebuild agreements. If your company needs dependable machining and engine rebuild capacity, we can set up a dedicated workflow around your volume.

  • Leasing portfolio engine recovery programs
  • Fleet and service-network rebuild contracts
  • Repeat platform setups for faster turnaround
  • Scheduled monthly production slots
  • Quality control reports with each delivered unit

Production Flow for Volume Work

Intake and Triage

Serial intake, teardown, damage coding, and route to batch queue.

Clean and Machine

Clean line first, then repeatable F67A operations by platform group.

Hone and Verify

Diamond hone, geometry verification, and documented tolerances.

Assemble and Deliver

Final assembly, QC sign-off, and scheduled contract delivery.

Planning a Build?

Send us the platform, the target, and the timeline. We'll come back with a build sheet, measurements and pricing.