S&S CYCLE - 310-1157 - V111 Long-Block Engine- Natural - 84-'99 Custom Chasis w/Alternator Style Primary
The S&S CYCLE 310-1157 is a v111 long-block engine- natural - 84-'99 custom chasis w/alternator style primary engineered for street applications where fit, function, and build quality are the baseline expectation. Fits '84-'99 Harley-Davidson® big twin chasis and custom frames designed for Evolution® big twin engines. +30% increase in HP and torque over stock, giving you a level of quality that holds up across the full service life of the component. Short stroke for less vibration and longer engine life. Shorter than stock engine height for easy installation. Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner. For riders who know the difference quality components make, the 310-1157 is the right call. Sold individually.
Features
- Fits '84-'99 Harley-Davidson® big twin chasis and custom frames designed for Evolution® big twin engines
- +30% increase in HP and torque over stock
- Short stroke for less vibration and longer engine life
- Shorter than stock engine height for easy installation
- Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner
- S&S big-fin cylinders with more fin area and exclusive oil jets to cool bottom of the pistons
- High volume, high-pressure (HVHP) oil pump
- Durable S&S 3-pc. flywheels
- Performance 585 cam & valve springs
- 4-1/8” x 4-1/8” bore and stroke
- 9.8:1 compression ratio
- Made in the USA
Specs
- Bore Size: 4-1/8”
- Displacement: 111”
- Model: V-Series
- Type: Long Block
- Compression Ratio: 9.8:1
- Piston Material: Forged
- Stroke Length: 4-1/8”
- Color/Finish: Natural
- Riding Style: Street
- Units: Each
- Product Name: Engine
Frequently Asked Questions - S&S CYCLE - 310-1157 - V111 Long-Block Engine- Natural - 84-'99 Custom Chasis w/Alternator Style Primary
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.
