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Our read

GarageScout Take

One-owner family history since new, with the original bill of sale, Protect-O-Plate, title documentation, and dealership paperwork. Originally built as an X11 350 automatic, it was later converted into a 4-speed Z/28 tribute with its original 350 block, crankshaft, and connecting rods bored.030 over into a reported 355ci engine. The engine uses a Holley 750 Double Pumper, Edelbrock Torker intake, Crane Fireball camshaft, aftermarket heads, Mallory ignition, and long-tube headers, with reported output of approximately 450 horsepower.

Strengths

  • Documented one-owner provenance
  • Z/28 tribute conversion with Muncie M22 4-speed
  • Built 355ci small-block with reported 450 horsepower
  • Original ownership and dealership documentation

Watch For

  • Originally factory-built as an X11 350 automatic and later converted to a 4-speed Z/28 tribute
  • Factory air-conditioning components were removed and retained
  • Modified drivetrain and suspension configuration