S&S CYCLE - 106-3240 - Cylinder Heads - 89 cc - Super Stock - Twin Cam
The S&S CYCLE 106-3240 is a cylinder heads - 89 cc - super stock® - twin cam engineered for street applications where fit, function, and build quality are the baseline expectation. Heads are fully assembled with springs and valves. Designed for '06-'16 engines with stock crankcase, giving you a level of quality that holds up across the full service life of the component. Good for touring bikes and other heavy vehicles. Works well with engines of stock displacement, but are ideal for somewhat larger stroker or big bore engines up to 110”. Combustion chamber provides a slightly higher than stock, but still manageable compression ratio in larger than stock engines. For riders who know the difference quality components make, the 106-3240 is the right call. Sold as a pair.
Features
- Heads are fully assembled with springs and valves
- Designed for '06-'16 engines with stock crankcase
- Good for touring bikes and other heavy vehicles
- Works well with engines of stock displacement, but are ideal for somewhat larger stroker or big bore engines up to 110”
- Combustion chamber provides a slightly higher than stock, but still manageable compression ratio in larger than stock engines
- Large 2.000” intake and 1.605” exhaust valves maintain port velocity for good low and midrange response, but supply enough air for slightly larger engines to perform to their full potential
- S&S® High performance valve springs allow the installation of camshafts with up to 0.650” lift
- Intake ports flow 264 CFM (Cubic Feet per Minute) compared to stock heads at 182 CFM
- Compatible with stock rocker boxes, exhaust, and intake manifolds
- Made in the USA
- Will not work with S&S compression releases in a late model twin cam that has Harley Davidson® ACR (Automatic Compression Release) already installed.
- Not compatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors or '17 touring models.
- Not for models with OEM compression releases.
- Must use S&S rocker boxes if S&S compression realses are used.
Specs
- Color/Finish: Wrinkle Black
- Product Name: Cylinder Head Kit
- Material: Aluminum
- Model: Super Stock
- Riding Style: Street
- Color/Finish: Powder-Coated
- Displacement: 89 cc
- Units: Pair
Frequently Asked Questions - S&S CYCLE - 106-3240 - Cylinder Heads - 89 cc - Super Stock - Twin Cam
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
