What is the compression height and pin diameter for these pistons?

These Wiseco pistons have a compression height of 28.70 mm and a pin diameter of 0.866 inches. This information is important for ensuring proper piston-to-valve clearance and connecting rod compatibility.

Are these pistons suitable for a street car or only for racing?

While designed for severe duty and racing applications, the features like the ArmorGlide skirt coating and improved ring seal can also benefit a high-performance street build. They are built to withstand significant stress.

What is included with this set of pistons?

This product includes a set of four Wiseco pistons. Premium rings are also included with the pistons, as noted in the manufacturer's description.

Wiseco 4G63 7-Bolt Pistons - Set of 4 K674M855AP

Name: Wiseco Mitsubishi 4G63 7-Bolt -12cc Dish 8.5:1 CR Pistons - Set of 4
Brand: Wiseco
SKU: wiseco-wiseco-mitsubishi-4g63-7-bolt-12cc-dish-8-5-1-cr-pistons-set-of-4-t14-364718
Price: 806.99 USD
Availability: BackOrder

Wiseco Mitsubishi 4G63 7-Bolt -12cc Dish 8.5:1 CR Pistons - Set of 4

$806.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wiseco Mitsubishi 4G63 7-Bolt -12cc Dish 8.5:1 CR Pistons - Set of 4. Forged 2618 aluminum construction for severe duty race builds.

Key Features

Fits Mitsubishi 4G63 7-bolt engines.
Set includes four forged pistons.
Made from 2618 aluminum for improved tensile strength.
Features a -12cc dish and 8.5:1 compression ratio.
Includes precision ring grooves and anti-detonation features for improved ring seal.
ArmorGlide skirt coating reduces friction and seizure resistance.

These pistons are designed for Mitsubishi 4G63 7-bolt engines. They are not CARB approved and cannot be shipped to California.

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Product Details

What you get in this box is a set of four Wiseco pistons, specifically made for Mitsubishi 4G63 7-bolt engines. These aren't just any pistons; they're forged from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial when you're pushing an engine hard. They feature a -12cc dish and are designed to achieve an 8.5:1 compression ratio, making them a solid choice for builders looking for a specific compression target in their performance builds.

Wiseco builds these Professional Series pistons for serious racers and builders who need parts that can handle heavy to severe duty applications. You'll find precision ring grooves, anti-detonation grooves, and other features aimed at improving ring seal. They also come with a special ArmorGlide skirt coating. This coating helps reduce friction, makes operation quieter, and resists seizing, all important factors when you're dealing with high-performance engines that generate a lot of heat and stress. The fully machined crown and forced pin oiling are also notable details that show these pistons are made for demanding use.

Because these are designed for severe duty, they are a well-built option for those rebuilding or modifying their 4G63 engine for racing or high-performance street use. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.