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Alter’d Motorsports

Engine Rebuilds · Carrollton, TX

Engine Rebuilds & Performance Builds

From a tired top end to a built motor, finished on the dyno where it belongs.

Book engine buildsGet a quote

Rebuilds range from a top-end refresh after a track season to full builds with pistons, cams, head work and upgraded internals. Every build is measured, documented and broken in on the dyno before it leaves.

We will be honest about what a build costs versus what you will feel. Sometimes the right answer is a flash and a tune; sometimes it is a motor that makes the bike a different machine.

From the shop

Engine Rebuilds in the bay

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Engine out of the frame on the bench at Alter'd Motorsports
Sportbike stripped to the frame for engine work
Inline-four engine open on a stand with pistons and crank laid out on the bench
Cylinder head on the bench with valves and camshaft visible

Pairs well with

A bike strapped to the dyno at Alter'd Motorsports with the monitor above
01

Dyno Tuning

Every tune starts with a baseline pull and ends with a printed before-and-after sheet. No guesswork, no generic maps.

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Technician at a laptop showing a fuel map, cable connected to the bike's diagnostic port
02

ECU Flashing

Unlock what the factory left on the table, then prove it on the dyno rather than trusting a download.

Details →

Ready for engine builds?

Tell us about the bike and we'll tell you what it needs. Carrollton, TX, off I-35E at Whitlock Ln.

Book a session(972) 510-9915