Sold out
  • Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

Mahle MS Piston Set for GM LS 428ci with 4.065-inch Bore and 4-inch Stroke

Mahle
mhl930225025
Out of stock
Engine
$1,019.97
The Mahle MS Piston Set for GM LS engines is designed specifically for 6.0L and 6.2L...

Mahle MS Piston Set for GM LS 428ci with 4.065-inch Bore and 4-inch Stroke

The Mahle MS Piston Set for GM LS engines is designed specifically for 6.0L and 6.2L displacements, offering reliable performance for high-performance automotive applications. This set is compatible with LS3 and L92 style rectangular port heads, making it suitable for a wide range of LS-based builds. Crafted for durability and precision, each piston features a 4.065-inch bore, a 4-inch stroke, and a 6.125-inch connecting rod length, ensuring optimal engine performance and longevity.

Constructed from 2618 aluminum alloy, these pistons are lightweight yet strong, with a weight of approximately 448 grams per piston. They include a 0.927-inch wrist pin, which ensures smooth operation within the engine assembly. The pistons have a dish shape with a volume of -25.0cc, balancing compression ratios effectively for enhanced power output. With a compression ratio of 9.9:1, this set is suitable for naturally aspirated or forced induction applications.

Manufactured by Mahle, a trusted name in engine components, these pistons are engineered for performance and durability. They are not carburetor approved but require acknowledgment of this specification during installation. The set of eight pistons is ideal for enthusiasts and professional builders looking to upgrade or rebuild LS engines, providing the key components needed to achieve high horsepower and reliability in performance applications.

Features:

  • Designed for GM LS 428 cubic inch applications with 4.065-inch bore and 4-inch stroke
  • Compatible with LS3 / L92 style rectangular port heads
  • Constructed from lightweight 2618 aluminum alloy for strength and durability
  • Includes a 0.927-inch wrist pin for smooth operation
  • Dish shape with -25.0cc volume for optimal compression ratio of 9.9:1
  • Engineered for high-performance naturally aspirated and forced induction engines
  • Set of 8 pistons, ideal for engine rebuilds and performance upgrades
  • Manufactured by Mahle, a leader in engine components
Read More
Read Less

Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

Your cart

×