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502 c.i. Pro-Series Short Block Engine Assembly for GM Big Block Applications
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BLUEPRINT ENGINESPART NUMBER: 138-PS502

502 c.i. Pro-Series Short Block Engine Assembly for GM Big Block Applications

$6,99900
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ShippingShips on 11/27/2026
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502 c.i. Pro-Series Short Block Engine Assembly
  • Fits GM Big Block Applications
  • Internally Balanced, 1-Piece Rear Main Seal
  • 4 in. Stroke
  • Forged 4032 Dome Pistons
  • Sold individually

    This BluePrint Engines short block is built for GM Big Block engine platforms and comes ready to accept the cylinder heads, camshaft, and intake of your choice, giving you a strong foundation for a custom big-block build.

    BluePrint PS502 502ci Short Block Overview

    • 502 c.i. GM Big Block compatible displacement
    • Forged 4032 dome pistons
    • Forged crankshaft with 4 in. stroke and 6.385 in. connecting rods
    • Internally balanced, 1-piece rear main seal
    • Dyno tested to 627 hp and 569 lb-ft of torque with a Holley Classic 850 cfm carburetor and HP8013 cylinder heads (performance may vary with different components)
  • Part TypeEngine Short Block
    BrandBLUEPRINT ENGINES
    Package Height22.5
    Package Width23.5
    Package Length26.0
    Weight280.0 PG
    Part CategoryPerformance Parts
    Rear Main Seal Style1-piece
    Short Block Piston StyleDome
    QuantitySold Individually
    Piston MaterialForged 4032
    Part FitmentSemi Universal
    Engine BalanceInternal
    Engine Stroke4 in (101.6 mm)
    Vendor Part NumberPS502
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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