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 Small Block Chevy 400ci with 4.125-inch Bore and 3.75-inch Stroke

Mahle
mhl930207825
Out of stock
Engine
$847.14
The Mahle MS Piston Set for Small Block Chevy 400 cubic inch engines offers reliable performance...

Mahle MS Piston Set for Small Block Chevy 400ci with 4.125-inch Bore and 3.75-inch Stroke

The Mahle MS Piston Set for Small Block Chevy 400 cubic inch engines offers reliable performance with precision-engineered components. Designed for a 4.125-inch bore and 3.75-inch stroke, these pistons are built to meet high-performance demands while maintaining durability. Each piston features a 0.927-inch wrist pin and a combustion chamber volume of 4.1cc, contributing to an overall compression ratio of 13.0:1. Crafted from high-quality materials, this set ensures optimal heat resistance and longevity, making it suitable for custom rebuilds and performance applications. The set includes eight pistons, each weighing approximately 515 grams, ensuring balanced operation in your engine assembly. With a compact size and precise manufacturing, these pistons deliver consistent power output and efficiency, ideal for enthusiasts seeking to maximize their small block Chevy's performance.

Features:

  • Designed for 400 cubic inch Small Block Chevy engines
  • Bore diameter: 4.125 inches for precise fitment
  • Stroke: 3.75 inches for optimal engine performance
  • Wrist pin diameter: 0.927 inches for secure piston connection
  • Combustion chamber volume: 4.1cc for high compression ratios
  • Weight: approximately 515 grams per piston for balanced operation
  • Set of 8 pistons suitable for rebuild or performance upgrades
  • Constructed from durable materials to withstand high temperatures
  • Optimized for performance and longevity in automotive applications
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

×