S&S CYCLE - 106-5513 - Piston Kit - Low Compression - 80” Stock Motor - +.020
A quality piston kit is the heart of any engine rebuild, and the S&S CYCLE 106-5513 is engineered to deliver OEM-level fit, finish, and durability ready to drop straight into your engine. For 80” stock big twin motors, ensuring dimensional accuracy from the first start-up. Forged pistons for superior strength, which means it holds tight tolerances longer and runs cooler. Piston kits include set of pistons, rings, wristpins, and clips, and wrist pin deck height 1.270” helps the new piston seat properly during break-in. Made in the U.S.A.. Whether refreshing a worn top-end or building a motor from scratch, the 106-5513 gives you a solid foundation for a long-lasting engine. Sold as a complete kit.
Features
- For 80” stock big twin motors
- Forged pistons for superior strength
- Piston kits include set of pistons, rings, wristpins, and clips
- Wrist pin deck height 1.270”
- Made in the U.S.A.
- Requires the use of connecting rods with a rod length of 7.440”(standard length OEM #24281-74A connecting rods); use of earlier connecting rod with rod length of 7.470” (OEM # 24281-41A) will result in a slight increase in the compression ratio of about one-halfpoint, and may also result in clearance problems (check all piston to cylinder head clearances carefully when using early style rods).
Specs
- Displacement: 80”
- Stroke Length: 4-1/4”
- Units: Kit
- Bore - Oversize: +0,020”
- Product Name: Piston Kit
- Riding Style: Street
- Compression Ratio: 8.0:1
- Bore Oversize: +0.020”
- Piston Material: Forged
- Type: Low Compression
- Bore Size: 3.520”
Frequently Asked Questions - S&S CYCLE - 106-5513 - Piston Kit - Low Compression - 80” Stock Motor - +.020
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.
