Welcome to XP-Series Engine

Whether it’s the XP-320, XP-360, XP-400, or race-proven XP-400SRE, Superior’s XP-Engine series gives airplane and helicopter builders the widest array of models so you can find the perfect engine for your aircraft and your budget.

But no matter which XP-Engine you choose, you are getting an engine that has all of Superior’s industry leading design, manufacturing and performance advancements. Your XP-Engine includes the blending of FAA-approved engine parts and other custom enhancements that are not available on any standard factory engines. So your XP-Engine will deliver a level of safety, reliability, value and performance that is well ahead of anything in its class.

Click here for a printable Build Engine Form