Gift CardContactAbout
0 My Cart

Your cart is currently empty.

Continue shopping
Total: $0.00
View cart
Toggle menu
0
  • Home
  • Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Sold out
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Load image into Gallery viewer, Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length

Have Questions?

(425) 295-1665 Ask an Experts

  • 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 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length

Mahle
mhl930217998
Out of stock
Engine
$847.97
The Mahle MS Piston Set is designed specifically for GM LS engines with a 346 cubic...
Mahle MS Piston Set for GM LS 346ci - 3.898 in Bore, 3.622 in Stroke, 6.125 in Rod Length
Description

The Mahle MS Piston Set is designed specifically for GM LS engines with a 346 cubic inch displacement, offering precise engineering for optimal performance. Each piston features a bore diameter of 3.898 inches and a stroke of 3.622 inches, ensuring accurate fitment and reliable operation within your engine. The pistons are compatible with LS1, LS2, and LS6 style cathedral port heads, making them versatile for various GM LS engine builds. Constructed with a compression ratio of approximately 10.2:1, these pistons are engineered to deliver a balance of power and efficiency. The set includes eight pistons, each weighing around 406 grams, ensuring uniformity and durability during high-performance operation.

The Mahle MS pistons have a pin diameter of 0.927 inches and are designed with a -4.1cc dish volume to optimize compression and combustion. The pistons are crafted from high-quality materials, providing excellent heat resistance and strength needed for demanding applications. Please note that these pistons are not carb-eligible and require carb acknowledgment for installation. They are suitable for aftermarket performance builds and are not intended for EPA-certified emissions compliance.

Engine builders and automotive enthusiasts seeking reliable, high-performance pistons for GM LS applications will find the Mahle MS set to be an excellent choice. Designed for durability and precision, these pistons enhance engine efficiency, power output, and longevity. Proper installation and compatibility checks are recommended to ensure optimal results in your specific engine configuration.

Features:

  • Designed for GM LS 346 cubic inch engines with a bore of 3.898 inches
  • Includes eight pistons with a stroke of 3.622 inches and a rod length of 6.125 inches
  • Constructed with a compression ratio of approximately 10.2:1 for balanced power and efficiency
  • Compatible with LS1, LS2, and LS6 style cathedral port heads for versatile applications
  • Made from durable materials with a weight of around 406 grams per piston for reliable performance
  • s a pin diameter of 0.927 inches and a -4.1cc dish volume to optimize combustion
  • Not carb-eligible; requires carb acknowledgment and is intended for performance builds
  • Designed for aftermarket use, not certified for EPA emissions compliance
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

×