Wiseco AC/HON B 4v DOME +8.25 STRUT 8100XX Piston Shelf Stock

SKU: WIS6593M81

Pistons

WIS Single Pistons

Wiseco

Wiseco AC/HON B 4v DOME +8.25 STRUT 8100XX Piston Shelf Stock

SKU: WIS6593M81

Pistons

WIS Single Pistons

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series.

Application Summary

Honda B16A

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-09-30 17:35:34

Features

ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
Designed and built to withstand heavy to severe duty performance applications
Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
Forced pin oiling
Fully machined crown features
Precision ring grooves, anti-detonation groove, and additional ring seal improving features

Specifications

Product Attributes - Brand: Wiseco
Product Attributes - Manufacturer's Part Number: 6593M81
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: Wiseco Sport Compact Pistons
Product Attributes - UPC: 00193564089106
Product Attributes - Piston Rings Included: No
Product Attributes - Bore (in.): 3.189 in.
Product Attributes - Bore (mm): 81.000mm
Product Attributes - Stroke: 3.504 in.
Product Attributes - Rod Length: 5.394 in.
Product Attributes - Piston Style: Dome, with four valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.181 in.
Product Attributes - Piston Head Volume (cc): -8.25cc
Product Attributes - Wrist Pin Style: Press-fit or floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.827 in.
Product Attributes - File Fit: Yes
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 1.0mm
Product Attributes - Top Ring Material: Steel
Product Attributes - Top Ring Facing Material: Gas nitrided
Product Attributes - Second Ring Thickness: 1.2mm
Product Attributes - Second Ring Material: Cast iron
Product Attributes - Second Ring Facing Material: Phosphate coated
Product Attributes - Oil Ring Thickness: 2.8mm
Product Attributes - Oil Ring Material: Stainless steel
Product Attributes - Oil Ring Tension: Standard
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.

Reference Information

Brand Name/s	Wiseco
StreetFX SKU	wis6593M81
SFX Item ID	4064349
Supplier Item Code	4064349
Manufacturer SKU	6593M81
Manufacturer UPC	193564089106
Alternative References	8100XX