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BB Mopar Aluminum

BMP Hemi/Wedge Aluminum Engine Blocks ( Available Summer 2019 )

Bill Mitchell Products engineers have collaborated with leading Chrysler racers and developed a highly refined version of the original 426-style  block. It's been designed using CAD/CAM 3D technology not available when the original was developed, and is manufactured to far more critical specifications. The BMP 426 Hemi features dual pattern Chrysler/GM bellhousings & more efficient lubrication. This is the ultimate block for Chrysler applications! Available in Hemispherical or Wedge configurations.

Due to the high demand we are taking orders with small deposits of $500.00 to reserve spot on the schedule. 

 

 

TECHNICAL INFORMATION:

  • 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

MORE INFORMATION

  1. Click here to view Instruction Sheet. - PDF Adobe Reader Required.