6.4L Powerstroke Heavy Duty Pistons (Maxx Force 7)

6.4L Powerstroke Heavy Duty Pistons (Maxx Force 7)

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The 6.4 Powerstroke (2008-10 model years) has a notorious problem with the pistons cracking.  This issue occurs more frequently in performance applications.  The solution for a high performance street driven truck is to install pistons from the International Maxx Force 7 engine.  The Maxx Force 7 is essentially the 6.4 Powerstroke but used in International truck applications.  When International released the 2011 Maxx Force 7, they designed the pistons for increased performance and they are perfect for use in Ford trucks.  The piston design includes a wider combustion bowl that prevents cracking.

These pistons are a direct replacement with the only major change being the compression ratio will lower approximately 0.5.  This lower compression has yet to show any negative affects, even in high altitudes and cold temperatures.

Please choose from the available options when ordering.

Bore Size:  Std, 0.010" over, 0.020" over, 0.030" over.

Piston Deck Machining:  We can remove 0.010" off the deck of the piston in case you have decked your engine block head surface.  This option adds $75.00

Thermal Barrier Coating:  This coating is designed to produce horsepower by reflecting the combustion heat, instead of absorbing it, and using that heat to drive the piston down but a secondary benefit that helps diesel users is that the coating protects the aluminum from melting when exposed to high combustion temperatures which are common in performance diesel engines.  This option adds $345.00 

Zero-Gap 2nd Ring:  By using a zero-gap 2nd ring, less combustion pressure escapes into the crankcase.  We use the zero-gap 2nd ring in all of our engine builds.       

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Questions & Phone Orders

2263 Enterprise Drive,
Alamosa, CO 81101, United States
Call Us: 1-866-631-8518

Store Hours

We are Open Monday-Thursday
9:00 to 4:00. (Mountain Standard Time)
We close from 12:00 to 1:00 for lunch.