Accurate Engineering offers a full 12 month / 12000 mile warranty on parts and labor.
Warranty applies to Knucklehead, Panhead, Shovelhead & Evo engines.

The warranty card must be filled out and returned to  Accurate Engineering within 14 days of shipping date on the bill of lading. Warranty covers all parts and labor. Accurate Engineering does not warrant used parts supplied by owner or work performed by other shops. All components including electrical components must be checked by Accurate Engineering for verification of failure. If component failure is determined not to be the customers fault, Accurate Engineering agrees to replace the part and cover the installation of said part, using a flat rate code, by either Accurate Engineering of by another shop only after approval  by Accurate Engineering. Accurate Engineering will make the determination, after inspection, if the failed component qualifies for full warranty. Accurate Engineering has limited or no warranty on high performance or racing engines. Accurate Engineering will void warranty for any one of the following reasons.

• Lack of odometer proving mileage or tampering with odometer to change mileage
• Break in procedures not followed
• Lack of Rev limiter or Rev limiter set outside of proper limit
• Maintenance procedures not followed
• Hard running before proper break-in
• Racing with engines not intended for race use
• Damage due to racing such as piston galling, valve spring damage, etc...
• Any work done by any shop not authorized by Accurate Engineering to do said work
• Neglect or obvious abuse
• Lack of oil/fuel filter