Engine Services
Cylinder Head Porting (LC4)
Cylinder-head porting for the LC4, quoted for your build.
From $450.00
Booked in the shop. Send a request and we'll confirm a time and quote.
- Fits
- KTM 690, Husqvarna 701, GasGas 700
- Years
- All years
- Where
- In the shop, Stevens Point, Wisconsin
- Fitment notes
- LC4 cylinder heads (KTM 690, Husqvarna 701, GasGas 700).
- Ported to suit your build
- Quoted per project
- Pairs with throttle body boring
Product Details
Head porting from a builder who has been doing engine work since 1998. We port LC4 cylinder heads to suit your intake, exhaust and goals.
Pricing starts at $450 and depends on the work involved. Use Request a Quote to tell us about your build.
Dyno-Tested Builds
Featured in These Dyno-Tested Builds
This part was one piece of the builds below. Each dyno page shows the full parts list and results for the complete build.
Complete the Build
Pairs Well With
Intake SystemsJB Performance Stage 3 Standard Intake (5"), K&N Filter
Dyno-developed 5" high-flow intake with a K&N filter for the 2017–2025 KTM 690, Husqvarna 701 and GasGas 700.
~3 lb vs stock
Intake SystemsJB Performance Stage 3 Standard Intake (5"), Uni Filter
The same 5" Stage 3 Standard Intake with a Uni two-stage foam filter: ideal for dusty enduro and off-road riding.
~3 lb vs stock
Intake SystemsJB Performance Intake: 2026–2027 KTM 690 SMC R / Husqvarna 701
Our new-generation standard (5") intake for the 2026–2027 KTM 690 SMC R and Husqvarna 701.