Engine Blocks

JEGS offers a large selection of engine blocks for Chevrolet, Ford and Mopar applications. Choose an engine block from GM Performance, Dart, World products, Ford Racing, Mopar and others. Build a 454 big block engine, a stroker small block or a big cube horsepower monster with an engine block from JEGS. JEGS also carries engine stands to help assemble a new engine.

Individual Products Product Groups
Results for "138"

Category:

Engines & Components Engine Blocks

Blueprint Engines SB Chevy Cast Iron Engine Block 4.000" Bore


Small Block Chevy Cast Iron Engine Block
  • 4.000" Bore
  • 2-Piece Rear Main Seal
  • Siamese Cylinder Wall
  • Wall Thickness: .360" at 4.000"
  • Maximum Bore/Stroke: 4.125"/3.750"
  • $1,615.00
    Estimated Ship Date: 12/05/17
    Lowest Price Guarantee


    Blueprint Engines SB Chevy Cast Iron Engine Block 4.125" Bore


    Small Block Chevy Cast Iron Engine Block
  • 4.125" Bore
  • 1-Piece Rear Main Seal
  • Siamese Cylinder Wall
  • Wall Thickness: .298" at 4.125"
  • Maximum Bore/Stroke: 4.125"/3.750"
  • $1,680.00
    Estimated Ship Date: 12/05/17
    Lowest Price Guarantee

    Blueprint Engines SB Chevy Cast Iron Engine Block 4.125" Bore


    Small Block Chevy Cast Iron Engine Block
  • 4.125" Bore
  • 2-Piece Rear Main Seal
  • Siamese Cylinder Wall
  • Wall Thickness: .298" at 4.125"
  • Maximum Bore/Stroke: 4.125"/3.750"
  • $1,615.00
    Estimated Ship Date: 12/04/17
    Lowest Price Guarantee







    Blueprint Engines SB Chevy Cast Iron Engine Block 4.000" Bore


    Small Block Chevy Cast Iron Engine Block
  • 4.000" Bore
  • 2-Piece Rear Main Seal
  • Wet Cylinder Wall
  • Wall Thickness: .230"
  • Maximum Bore/Stroke: 4.060"/3.750"
  • $1,680.00
    Estimated Ship Date: 12/05/17
    Lowest Price Guarantee




    Blueprint Engines SB Chevy Cast Iron Engine Block 4.000" Bore


    Small Block Chevy Cast Iron Engine Block
  • 4.000" Bore
  • 1-Piece Rear Main Seal
  • Wet Cylinder Wall
  • Wall Thickness: .230"
  • Maximum Bore/Stroke: 4.060"/3.750"
  • $1,680.00
    Estimated Ship Date: 12/05/17
    Lowest Price Guarantee

    Blueprint Engines SB Chevy Cast Iron Engine Block 4.000" Bore


    Small Block Chevy Cast Iron Engine Block
  • 4.000" Bore
  • 1-Piece Rear Main Seal
  • Siamese Cylinder Wall
  • Wall Thickness: .360" at 4.000"
  • Maximum Bore/Stroke: 4.125" 3.750"
  • $1,680.00
    Estimated Ship Date: 12/05/17
    Lowest Price Guarantee