Return Policy

Return Policy:

Returns must be made within 30 Days of Purchase. Returns must also be in NEW, UNUSED Condition and are subject to a 20% Restocking Fee. Certain Items such as Electronics, and Built to Order Items including Custom Engine Parts and Turbochargers will not be accepted. The Return amount with be refunded in the same form as the original payment type. Please contact us by way of phone or email before sending any returns. It is possible that if the 30 days has past, we will still accept the return as long as it is in the same condition it was delivered. Please mail your package in a prepaid, insured, traceable method to the address below. Thank you for your cooperation. 

Bearings - There are asbolutely no returns on bearings that have been opened. Bearing clearances are a tricky part of engine building and sometimes the bearings you purchase will not yield your desired clearances. We have offered to exchange bearings in the past with a good amount of them showing back up damaged. For that reason, we will not longer offer any returns, refunds or exchanges on any bearings. 

Pistons - Absolutely no returns or exchanges on custom pistons or pistons with options added on such as Gas Ports or Coatings. Please check the bore of your block or have your machinist check the bore before ordering pistons so you can make sure you are getting the correct size. Also, do not have the final hone done until the pistons are in your hands. All pistons come undersized for proper piston to wall clearance but that can vary a few thousanths. We have had way too many people trying to return pistons recently for the simple fact that they ordered the incorrect size. For this reason, there will be a firm 20% restocking fee.

Cylinder Heads - All Cylinder Head Packages are made to order with the options you choose. There will be no returns on any Cylinder Head Packages.

Rotating Assemblies - There will be no returns on Rotating Assemblies that have been balanced. If there is an issue with something we will be glad to work with you to resolve the issues as quickly and efficiently as possible. 

We do reserve the right to charge a 20% restocking fee on returns. If there is a cancellation before a product is shipped, the return may be subject to a 3% charge fee.

Please contact us with any questions regarding our return policy at the email address below. 

Thank You, 

-MHS Team