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Gen II Hemi Aluminum Cylinder Block 4.490" Bore (BMP 088515)

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Gen II Hemi Aluminum Big Bore Block


World Products 426 Hemi 357T6 Aluminum Engine Block 426 Hemi Block, 10.720"Deck, 4.490" Bore. Standard Cam,.904" Lifters (includes, Screw in Freeze plugs, Screw in Cam plug, All dowel pins and Pipe plugs) 088510. Comes Standard with dual bell housing pattern: Big Block Mopar & Powerglide.

Can be used as a replacement block for most all Gen II Street Hemi Engines

Allow 120 to 150 Days to receive when special ordered

Block can be drop shipped direct to your ship to address when completed

Shipping is additional

For 426/472 Cubic Inch Engines, use Cylinder Block with 4.240" bore size

All Orders Must Be Called In.... $500.00 deposit required to be put in line


  • Material: 357-T6 Aluminum
  • Deck Height: 10.725"
  • Deck Thickness: .600" minimum
  • Cam Bearings: Stock (can be machined for 60mm)
  • Camshaft Location: Standard
  • Lifter Bores: .904"bronze bushings on a 45 Degree Lifter Bank with .035" feed hole
  • Cylinder Bore Spacing: 4.80"(stock)
  • Bores Available: 4.240" and 4.490"
  • Maximum Bore: 4.560"
  • Sleeves: Centrifugally cast ductile iron 
  • Water Jackets: Expanded for better cooling
  • Lubrication: Priority main oiling system
  • Oil System Features: Std oil pump location,
  • Crank Clearance: 4.500" max stroke, 4.750" with additional clearance
  • Main Caps: crossed bolted nodular iron
  • Main Cap Hardware: ARP 1/2" Studs
  • Rear Main Seal: Std
  • Oil Pan Rails: Std
  • Dip Stick: Std
  • Fuel Pump: OEM mount
  • Starter: OEM mount
  • Motor Mounts: Dual (front and side)
  • Cylinder Head Holes: Extra deep holes for more thread engagement, Blind tapped to prevent leaks
  • Bellhousing: Dual (accomodates stock and GM)
  • Weight: Approximately 175 lbs.
  • Cam Bearings: Std
  • Dowel Pin Kit: BMP 701595-K
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