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Flag Motorsports
Engines All Engines Block Sleeving

427 Long Block - from $15,999.00

Timeline may vary. Please contact us to discuss your engine application and obtain a custom quote

  • 700+ horsepower, 650+ torque, exact ratings depend on parts selection

  • Sleeved or aftermarket block

  • Aftermarket cylinder heads

  • Billet valve covers

  • Optional dressing, including accessory drive and engine management.

Flag MotorsportsMarch 5, 2024427, Longblock, Performance, LS
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Stroker LS3 Long Block - from $12,999.00

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“Turn Key” Gen 5 LT1 - $11,399.00

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Monday-Friday, 12pm PST - 7pm PST

635 N Twin Oaks Valley Road #3, San Marcos CA 92069

(760) 410-8997

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Flag Motorsports is proud to offer a 10% Military/First Responder discount on labor for engine assembly projects.
Based in Southern California, serving clients in all 50 states.
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