HPSP RACING SUPER CYLINDER HEAD RACING COMP. SET PORTING CNC Y15ZR LC135 (22/25mm) M10
The HPSP Racing Super Cylinder Head Comp. Set is a CNC-ported performance cylinder head for the Yamaha Y15ZR and Yamaha LC135, built with 22/25mm valve sizing and offered with model-specific stud thread options.
Option
In stock · Estimated delivery: 3–7 business days (West Malaysia)
Product Details
Overview
The HPSP Racing Super Cylinder Head Comp. Set is a CNC-ported performance cylinder head for the Yamaha Y15ZR and Yamaha LC135, built with 22/25mm valve sizing and offered with model-specific stud thread options.
Key Features
- CNC ported racing cylinder head, HPSP Racing genuine product
- 22/25mm valve size (intake/exhaust)
- Model-specific stud thread: M10 for Y15ZR, M12 for LC135
- High performance spec for modified engine builds
Specifications
- Brand
- HPSP Racing
- Product
- Super Cylinder Head Racing Comp. Set, Porting CNC
- Type
- CNC ported racing cylinder head
- Main spec
- Valve size 22/25mm (intake/exhaust)
- Compatibility
- Yamaha Y15ZR (M10 stud), Yamaha LC135 (M12 stud)
Variants & Setup
Same 22/25mm valve spec across both models, but the head stud thread differs: M10 for Y15ZR, M12 for LC135. Select the version matching your bike model; the two are not interchangeable due to the different stud thread size.
Installation & Package
Replaces the stock cylinder head; should be installed by an experienced mechanic since valve clearance, gasket matching and compression setup affect performance and reliability. "Comp. Set" indicates a components set; exact package contents (head only vs with valves/springs) not verified, please confirm with seller.
Summary
HPSP Racing CNC ported 22/25mm cylinder head comp. set for Yamaha Y15ZR (M10) and LC135 (M12).
Important Notes
Confirm your bike model (Y15ZR vs LC135) before ordering, as the stud thread (M10 vs M12) is model-specific and not interchangeable. This is a performance part for modified engines; professional installation and tuning is recommended. No horsepower figures are claimed.
Frequently Asked Questions
Both use 22/25mm valve sizing, but the Y15ZR version has an M10 stud thread while the LC135 version has an M12 stud thread.
No, the stud thread sizes differ between models, so the correct version for your bike must be selected.
Yes, it is listed by the seller as an original genuine HPSP Racing item.
Yes, professional installation and tuning is recommended for correct valve and compression setup.
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