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 Ford 434 cubic inches - 4.155-inch Bore, 4.000-inch Stroke, 6.250-inch Connecting Rod, .927-inch Pin, 12.2 Compression Ratio

Mahle
mhl930244455
Out of stock
Engine
$790.44
The Mahle MS Piston Set designed for Small Block Ford engines offers a high-performance solution for...

Mahle MS Piston Set for Small Block Ford 434 cubic inches - 4.155-inch Bore, 4.000-inch Stroke, 6.250-inch Connecting Rod, .927-inch Pin, 12.2 Compression Ratio

The Mahle MS Piston Set designed for Small Block Ford engines offers a high-performance solution for engine builders seeking durability and precision. This set is tailored for 434 cubic inch applications, featuring a bore diameter of 4.155 inches and a stroke of 4.000 inches. The pistons are constructed with a weight of approximately 447 grams each, providing a balanced combination of strength and efficiency. Coated with phosphate and Grafal, these pistons are engineered to withstand the rigors of high-performance engine operation, reducing wear and promoting longevity.
Each piston is designed with a 12.2:1 compression ratio, optimized for high compression applications. The set includes pistons with a 6.250-inch connecting rod length and a .927-inch wrist pin diameter, ensuring compatibility with a variety of performance builds. The pistons are not carb-approved and require acknowledgment of carb restrictions during installation, making them suitable for specialized engine setups. The set of eight pistons is ideal for enthusiasts and professionals looking to enhance their Ford small block engine's power and reliability.
Constructed for serious performance applications, these Mahle pistons are a perfect choice for custom engine builds, race cars, or rebuild projects where quality and precision are paramount. They are designed to meet the demanding needs of high-performance automotive engines, offering consistent performance and robust construction while complying with Prop 65 regulations for safety and health standards.

Features:

  • Bore Diameter: 4.155 inches for optimal high-performance fits
  • Stroke: 4.000 inches to maximize power output
  • Connecting Rod Length: 6.250 inches for reliable engine dynamics
  • Wrist Pin Diameter: .927 inches for secure piston connection
  • Compression Ratio: 12.2:1 for enhanced engine efficiency
  • Coatings: Phosphate and Grafal for wear resistance and durability
  • Engine Application: Designed specifically for Ford Small Block 434 cubic inch engines
  • Quantity: Set of 8 pistons for complete engine rebuild or upgrade
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

×