Loading... Please wait...

Categories

Mopar Aluminum Big Block

BMP Hemi/Wedge Aluminum Engine Blocks 

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.

We are currently in the middle of some foundry updates and at the same time decided to use the down time  to upgrade the tooling to improve the casting quality. Projected ship dates to begin in late Summer 2018.  

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.
  2. Click here to view Sleeve Tech Bulletin - PDF Adobe Reader Required.
Sort by:

Follow us on



Copyright 2018 Bill Mitchell Hardcore Racing Products. All Rights Reserved.
Sitemap | Website by A.J. Liguori.