Wiseco Honda K-Series +10.5cc Dome 1.181x89.0mm Piston Shelf Stock Kit

SKU: WISK650M89AP

Pistons

WIS Piston Sets - 4 Cyl...

Wiseco

Wiseco Honda K-Series +10.5cc Dome 1.181x89.0mm Piston Shelf Stock Kit

SKU: WISK650M89AP

Pistons

WIS Piston Sets - 4 Cyl...

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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 K20A/Z

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-10-14 16:45:47

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: K650M89AP
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: Wiseco Sport Compact Piston and Ring Kits
Product Attributes - UPC: 00193564089755
Product Attributes - Piston Rings Included: Yes
Product Attributes - Bore (in.): 3.504 in.
Product Attributes - Bore (mm): 89.000mm
Product Attributes - Stroke: 3.897 in.
Product Attributes - Engine Stroke Type: Stock
Product Attributes - Rod Length: 5.984 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): -10.50cc
Product Attributes - Wrist Pin Style: Floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.866 in.
Product Attributes - Piston Ring Thickness: 1.00mm x 1.20mm x 2.80mm
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 1.0mm
Product Attributes - Second Ring Thickness: 1.2mm
Product Attributes - Oil Ring Thickness: 2.8mm
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold as a set of 4.

Reference Information

Brand Name/s	Wiseco
StreetFX SKU	wisK650M89AP
SFX Item ID	4063263
Supplier Item Code	4063263
Manufacturer SKU	K650M89AP
Manufacturer UPC	193564089755
Alternative References	+10.5cc, 1.181x89.0mm