What is the compression ratio with these pistons?

These Mahle pistons feature a -4.3cc dish and are designed to achieve a 12.7:1 compression ratio when used with compatible GM LT1, L86, or LT4 cylinder heads.

What material are these pistons made from and what coatings do they have?

The pistons are forged from 2618 aluminum, a strong material suitable for high-performance applications. They also feature a TBC coating on the skirts to help reduce friction and noise.

Are these pistons compatible with all GM LT engines?

This specific set is designed for the GM LT 6.2L 415 cubic inch engine and is compatible with LT1, L86, and LT4 cylinder heads. It's important to verify fitment for your specific engine application.

Mahle GM LT 6.2L Forged Piston Set 930165365T

Name: Mahle MS Piston Set GM LT 6.2L 415ci 4.065in B 4.000in S 6.125in R .927 P -4.3cc 12.7 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-lt-6-2l-415ci-4-065in-b-4-000in-s-6-125in-r-927-p-4-t14-461504
Price: 1294.28 USD
Availability: BackOrder

Mahle MS Piston Set GM LT 6.2L 415ci 4.065in B 4.000in S 6.125in R .927 P -4.3cc 12.7 CR Set of 8

$1294.28

On Backorder

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

Mahle forged piston set for GM LT 6.2L 415ci engines. Features 4.065in bore and 12.7:1 CR.

Key Features

Set of 8 forged pistons for GM LT 6.2L 415ci engines.
Designed for use with GM LT1, L86, and LT4 cylinder heads.
Flat top piston design with a -4.3cc dish for 12.7:1 compression ratio.
Constructed from 2618 aluminum for strength and durability.
TBC coated skirts reduce friction and noise.
Accommodates a 4.000-inch crankshaft stroke and 6.125-inch connecting rod.

This piston set is designed for GM LT 6.2L 415 cu in. engines. Not CARB approved and cannot ship to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

If you're rebuilding the top end of your GM LT 6.2L 415 cubic inch engine, this set of forged pistons from Mahle is a solid option. These pistons are designed to work with GM LT1, L86, and LT4 cylinder heads, making them a direct fit for many performance builds. They feature a flat-top design with a -4.3cc dish, contributing to a 12.7:1 compression ratio when paired with compatible heads.

Mahle uses 2618 aluminum for these pistons, a material known for its strength and durability under high stress. They also come with a TBC coating on the skirt, which helps reduce friction and noise during operation. The pistons are built to accommodate a 4.000-inch stroke and a 6.125-inch connecting rod with a 0.927-inch pin diameter. Each piston weighs in at 439 grams, helping to keep reciprocating assembly weight manageable for high-RPM performance.

This set includes eight pistons, enough for a complete V8 engine. Please note 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.