Wiseco 77.0mm Ring Set (GNH) Ring Shelf Stock
Wiseco 77.0mm Ring Set (GNH) Ring Shelf Stock
Description
Wiseco 77.0mm Ring Set (GNH) Ring Shelf Stock
Wiseco piston ring sets are made specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of pistons. From compression and sealing to oil control, rings can make or break piston performance, which is why Wiseco rings are developed and tested for race-ready performance.
Part Type
Engine Piston Ring Set
Product Overview
Wiseco Pro Tru line of pistons utilize a plasma moly âpre-gappedâ ring set for the budget minded consumer. Wiseco Sport compact kits include the high quality NPR XX rings, which are the best quality steel nitrided top rings and napier style 2nd rings. Our late model EFI lineup and several small block Chevy pistons are designed around the our 1.2mm Steel Nitride and napier GFX ring sets. Many of our big block sets utilize a .043 back cut top ring for extra material thickness around the intake valve.
*Unless Noted - Rings Sold Individually - Order Specific Quantity Needed*
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:43:53
Features
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: ring set)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| 2nd Ring: | 1.2mm Cast Iron / Napier Hook |
| Bore Diameter: | 77.00 |
| Bore: | 77mm |
| Category Hierarchy: | Auto>Service Parts & Accessories>Rings |
| Description: | High Performance Piston Rings |
| EBAY Category ID: | 33623 |
| Engine Type: | ICE |
| File Fit: | No |
| Gapless: | No |
| Industry: | Automotive |
| Oil Ring Thickness: | 2.80 |
| Oil Ring: | 3/16 3-Piece Std Tension |
| Part Number: | wis7700XX |
| Product Type: | Engine Piston Ring Set |
| Second Compression Ring Thickness: | 1.20 |
| Second Ring Facing Material: | Phosphate Coated |
| Second Ring Material: | Cast Iron |
| Size: | .039-.047-2.8mm |
| Third Ring Material: | Stainless Steel |
| Title - Web: | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Title: | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Top Compression Ring Thickness: | 1.00 |
| Top Ring Facing Material: | Gas Nitrided |
| Top Ring Material: | Stainless Steel |
| Top Ring: | 1mm Alloy Steel / Gas Nitrated |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Wiseco, WISECO-PRO TRU |
| StreetFX SKU | wis7700XX |
| SFX Item ID | 4062814 |
| Accounting SKU | wis-7700XX |
| Manufacturer SKU | 7700XX |
| Manufacturer UPC | 00193564179609 |
| Alternative References | 7700XX, WIS-7700XX |
Powersports Piston Rings, 3.031 in. Bore, Single Piston, Universal, Each
Manufactured to the highest standards to outperform the competition, Wiseco 4-stroke piston rings maximize your performance and keep you firing on all cylinders. These rings are crafted from various metals and with specific finishes for both street and track. Designed to underscore piston lubrication, reduce bore friction, and optimize the heart of your engine, Wiseco rings improve the overall function of your pistons and powerplant. The 4-stroke rings are intended for use in cast iron, NikaSil, boron composite, and electrofusion bores; certain rings are designed for limited coatings, such as the XJ with chrome bores and the XN with NikaSil bores. Match up the specs from your motorcycle with the size and type of piston ring replacements you need. You can always depend on race-proven Wiseco technology!
| Product Attributes | |
|---|---|
| Brand | Wiseco |
| Gapless | No |
| File Fit | No |
| Quantity | Sold as a set. |
| Bore (mm) | 77.000mm |
| Part Type | Powersports Piston Rings |
| Bore (in.) | 3.031 in. |
| Product Line | Wiseco 4-Stroke Piston Rings |
| Oil Ring Included | Yes |
| Top Ring Included | Yes |
| Second Ring Included | Yes |
| Manufacturer's Part Number | 7700XX |
| Manufacturer Attributes | |
|---|---|
| Top Compression Ring Thickness | 1.00 |
| Second Compression Ring Thickness | 1.20 |
| Oil Ring Thickness | 2.80 |
| Bore Diameter | 77.00 |
| Category Hierarchy | Auto>Accessories>Rings |
| Industry | Automotive |
| Second Ring Material | Cast Iron |
| Product Type | Engine Piston Ring Set |
| Out of Stock Message | Estimated Shipped Date 3-4 Weeks |
| Top Ring Facing Material | Gas Nitrided |
| Engine Type | ICE |
| File Fit | No |
| Gapless | No |
| Second Ring Facing Material | Phosphate Coated |
| Title | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Title - Web | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Third Ring Material | Stainless Steel |
| Top Ring Material | Stainless Steel |
| Manufacturer Designation | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Product Class | Engine Piston Ring Set |
| Construction/Type | Piston Ring Set - 77.00 mm Bore - 1.00 mm Top / 1.20 mm 2nd / 2.80 mm Oil |
| Vehicle Brief | Wiseco, Piston Ring Set |
| Market Description | Wiseco piston ring sets are made specifically to Wiseco?s specifications to provide ultimate performance and sealing with Wiseco?s wide variety of pistons. From compression and sealing to oil control, rings can make or break piston performance, which is why Wiseco rings are developed and tested for race-ready performance. |
Compatibility
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