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Alpha Stage 3 Turn-Key Turbo Package, 425HP




Collections: Ecotec Engines

Product type:

Vendor: Alpha Motorsports, Inc.




ALPHA MOTORSPORTS Stage 3, 2.4 LE5 Turbo Package Product Description:

The Alpha Stage 3, 2.4 LE5 Turbo Package puts out 400+ hp @ 6800 RPM's and 420 ft-lbs of torque with a compression ratio of 10:5.1. This engine offers reliable, dependable, and durable power. Custom options are also available. 


  • Alpha 2.4 Ecotec [early style w/ forged rods] VVT Engine w/ all needed sensors, re-manufactured crate engine equivalent, bench tested, race prepped, cleaned, assembled, and AFI QC
  • Alpha ceramic coated turbo exhaust manifold w/ Bosch O2 sensor, custom stainless 2.5" dump w/ O2 bung
  • Alpha Stand-Alone Engine Harness & OE ECM System, OBD2 compliant, configured for electronic drive by wire throttle
  • Alpha Turbo Water Block
  • Alpha Billet -6AN Fuel rail adapter
  • Alpha DBW Pedal
  • Alpha MAF Sensor & Aluminum MAF Sensor housing, TIG Welded
  • Alpha Stage II Turbo kit w/ GT28 Series Ball-Bearing turbo w/ v-band 2.5" stainless exhaust, Tial 38mm external wastegate w/ stainless dump, ALL needed oil fittings, lines, and gaskets, ALL needed oil drain fittings, lines, gaskets, and oil pan modification, ALL needed water feed and drain fittings, lines, and adapters
  • Siemens 60# injectors
  • GM 2-BAR MAP Sensor
  • Alpha Top Mount Air to Air Intercooler option w/ all Aluminum TIG welded piping, painted mount, silicone and couplers
  • Tial 50MM blow off valve
  • Alpha high flow air filter w. silicone coupler
  • Alpha ECM STAGE III ECM calibration
  • All nuts, bolts, gaskets, etc.

All engines packages are built to order. Please contact us for lead times. Used engines are available but do not come with Alpha's 6 month limited warranty. Please call 810-893-6265 for more information or to place an order!