Made in USA
BB Chevy Cast Iron Engine Block Gen IV 2-Piece Rear Main Seal
Product Discontinued
BLUEPRINT ENGINESPART NUMBER: 138-BPT4250200W

BB Chevy Cast Iron Engine Block Gen IV 2-Piece Rear Main Seal

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Cast Iron Big Block Chevy Block
  • Gen IV 10.2 Deck
    • Big Block Chevy Cast Iron Engine Block
    • Gen IV 2-Piece Rear Main Seal
    • 4.250" Bore
    • 10.2" Deck Height

      !

      Specifications for 138-BPT4250200W:
    • Material: Cast Iron
    • Deck Height: 10.200"
    • Deck Thickness: .700" minimum
    • Bore Size: 4.250"
    • Max. Bore: 4.350"
    • Cylinder Wall Configuration: Open
    • Cylinder Wall Thickness: .400"
    • Main Caps: Ductile Iron, 4 bolt splayed
    • Main Bearings: Standard Chevy
    • Main Bearing Bore: 2.9370" - 2.9380"
    • Crank Clearance: 4.750" for 10.200" deck
    • Rear Main Type: 2-Piece Rear Main Seal
    • Camshaft Location: Stock
    • Cam Bearings: Standard Chevy
    • Cam Drive: Timing Chain, Gear Drive and Belt Drive
    • Cam Plug: Standard BBC, 2.215" diameter
    • Timing Cover Pattern: Gen IV (10-bolt)
    • Lifter Bores: Gen V/VI, Will Accept Link Bar
    • Freeze Plugs: Standard 1 5/8" (Not included)
    • Lubrication: Main Priority Oiling, Wet or Dry Sump
    • Oil Filter Boss: Integral mount for spin-on filter
    • Oil Cooler Holes: Integral to block
    • Oil Pan Rail: Standard Big Block Chevy 2-Piece Rear Main Seal Bolt Pattern
    • Fuel Pump Boss: Yes
    • Fuel Pump Pushrod: Standard Big Block Chevy
    • Starter: Standard location
    • Motor Mounts: Front and side
    • Stud and Bolt Holes: Blind tapped to prevent leaks
    • Head Bolt Pattern: Standard Big Block Chevy
    • Inside Head Bosses: Yes
    • Torque Specs: All 1/2" bolts 105 ft/lbs
    • Clutch Linkage Boss: Yes
    • Weight: Approximately 275 lbs

    Part TypeEngine Block
    BrandBLUEPRINT ENGINES
    Package Width275.0
    Weight275.0 PG
    Part CategoryPerformance Parts
    Main Journal Type454 mains
    Engine Block StyleAftermarket/OEM tall deck
    Engine Block MaterialCast iron
    Cylinder Bore As Shipped4.24 in (107.696 mm)
    Engine Block Weight (Lbs.)275
    QuantitySold individually
    Raised Cam LocationNo
    Freeze Plugs IncludedNo
    Main Bolt Style4-bolt
    Deck Height10.2 in (259.08 mm)
    Main Bearings IncludedNo
    Main Cap MaterialDuctile iron
    Rear Main Seal Style2-piece
    Main Caps IncludedYes
    Finished Cylinder BoresNo
    Cylinder Bore Diameter4.25 in (107.95 mm)
    Cam Bearings IncludedNo
    Main Cap Fasteners IncludedYes
    Vendor Part NumberBPT4250200W
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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