Welcome to FlaG Motorsports
LS & LT ENGINE BUILDING and block sleeving
With over a decade of applied experience, and hundreds of engines built, Flag Motorsports is your ideal choice for quality hand built engines.
In HOUSE MAchining Services
4 Axis Blockwork CNC Machine & LS/LT Block Sleeving
CNC Torque Plate Honing
5 Angle Valve Jobs + Seat Replacement
Rotating Assembly Balancing & Heavy Metal Install
Vapor Blasting
About Us
tested and Proven at the track
Our roots run deep into racing, where we use our racecars as a test bed for engine combinations, parts tolerances, and durability in some of the most rigorous torture testing we can put an engine through. This is how we formulate our engine combinations - by proving them in extremely harsh environments with drivers who are pushing them to the limit. If they can survive season after season, the combination will be successful for our clients as well.
Our team has a range of cars, from old-school muscle to modern race focused sport cars. Find us at the track when we’re not in the shop - we hope we’ll see you there as well.
Check Out the Latest Builds & News From Flag
Powering decorated race cars and dedicated drivers.


