45 Years of Race-Winning History

Cylinder Head Services

Learn more about the services for each category by clicking the options below.

HD/ V-Twin

Off-Road

Road Race

Flat Track

Street Strip

Drag Bike

Cylinder Head Pricing

CylindersCNC Porting (Only)Valve JobChamber Cut AssemblyDisassemblySurface
Single$475.00$180.00$90.00$30.00$30.00$100.00
V-Twin / Twin Cam$600.00$300.00$150.00$60.00$60.00$187.50
V-Twin / M8$800.00$390.00$200.00$60.00$60.00$187.50
Twin$750.00$285.00$150.00$60.00$60.00$100.00
Triple$800.00$325.00$180.00$90.00$60.00$100.00
Four$900.00$400.00$225.00$120.00$60.00$100.00
ServicePrice
Seat Bore (EA)$75.00
Seat Bore 2 (HOLES)$100.00
Seat Bore 4 (HOLES)$125.00
Seat Bore 8 (HOLES)$250.00
Cam Cap Cut (EA)$125.00
Compression Release$150.00
Bucket Bore AvailableCall For Pricing
Stud Bore / Washer Relief$180.00
Bench Shim$125.00

* Pricing may vary depending on individual and/or paired services

Performance Driven

Engine Services

With 45 years of experience in racing, Vance & Hines Motorsports offers specialized services in REM Polishing and Backcutting of Transmission Gears to enhance engine performance and efficiency. Our expertise is grounded in a long history of success in competitive racing.

Superfinish

Smoother Performance

REM Polishing

Vance & Hines Motorsports offers REM Polishing, a specialized metal finishing service perfect for enhancing engine performance. This unique isotropic superfinishing process is essential for reducing friction and wear on engine components, leading to increased durability and efficiency. Ideal for high-performance engines, our REM Polishing service ensures smoother operation and improved power transfer. Trust Vance & Hines for expert REM Polishing, a key service for maintaining peak engine condition.

$349.99

Improved Performance & Durability

Backcut Transmission Gears

Vance & Hines Motorsports offers a Backcut Transmission Gears service, an essential upgrade for those seeking improved performance and durability from their motorcycle's transmission. This service involves the precise re-machining of the gear teeth to an angled profile, which allows for more positive engagement under load. The backcutting process increases the contact surface area between gears, resulting in smoother shifting, reduced chance of gear slippage, and enhanced power delivery to the rear wheel. Ideal for high-stress racing environments as well as for the avid enthusiast looking for a more reliable and responsive riding experience, Vance & Hines Motorsports' expert technicians ensure that each gear is backcut to the highest standards of quality and performance.


Applications

  • 06-17 Twin Cam 6 Speeds
  • 17-Current M8 6 Speeds
  • 21-25 Pan America 1250

Features*

  • VHM King of the Bagger Race Team Development
  • Back cut of 2nd / 3rd / 4th / 5th / Dog Rings / Gear Dog Pocket Ring “Loaded Side”
  • Better Gear Dog Engagement
  • Reduces the Possibility of False Gear Engagement.
  • Annealed after CNC cutting for Gear Durability
  • Includes VHM Proprietary Stop Ring to Reduce 3rd Gear Shift Fork Damage
  • REM ISF Finish for Smooth Operation and Reduction of Parasitic Drag
  • Send Cassette Complete,
    Serviced, and Reassembled for Install
  • Proven VHM Performance

*Note: Any additional parts needed will be added to the service price.

$1,449.99

Call For Dealer Pricing

Custom Boring for Performance Upgrades

PRECISION CASE BORING

Vance & Hines Motorsports provides precision case boring for 1999-present Harley-Davidson V-Twin engine cases, tailored to fit big bore cylinder kits. Our process starts with a comprehensive inspection and preparation of your engine cases, followed by precise boring using our advanced Mazak HCN-5000 machine. If needed, we can replace damaged components and offer powder coating as an optional finishing service. Please note that additional parts and powder coating services will be added to the overall cost and may extend the lead time.

$314.99

Schedule a part for service

Contact us to schedule your part for service.