Knox’s Powersports Cylinder Resleeving & Engine Rebuilds

Ship Us Your Block. Get It Back Clean, Sleeved, and Ready to Build.

We specialize in high-performance resleeving and engine rebuild services for Sea-Doo, Yamaha, Kawasaki, and more. Whether you’re a racer, dealer, builder, or DIY’er — we’ll bring your engine back to life.

Nationwide shipping available — fast turnaround, expert service.

Services We Offer

Cylinder Sleeving

  • OEM-style and oversized sleeves

  • Single, twin, triple, and 4-cylinder engines

  • WSM, LA Sleeve, or customer-supplied

  • Precision bore & hone matched to piston spec

Engine Rebuilding

  • Full teardown, inspection, and rebuild

  • Resleeving, piston install, crankshaft/bearing work

  • Head resurfacing, deck prep, cleanup

  • For Sea-Doo, Yamaha, and Kawasaki

Add-On Services

  • Stud removal & thread repair

  • Deck cleanup / warpage correction

  • Custom piston-to-wall clearance

  • Long-block assembly available on request

How It Works

  1. Fill out the quote form below — tell us what you’re sending.

  2. Ship your parts — we’ll email detailed shipping instructions.

  3. We resleeve & rebuild — fast turnaround, precision machining.

  4. We ship it back, ready to assemble — cleaned, honed, and verified.

Engine Service Quote Request

Interested in working together? Fill out some info and we will be in touch shortly! We can't wait to hear from you!