World Products engineers have collaborated with leading MOPAR racers and developed a highly refined version of the original 426-style HEMI bock. 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 HEMI features dual pattern MOPAR/GM bellhousings, more efficient lubrication, and can be ordered with raised cam locations. This is the ultimate block for MOPAR applications!

GET IT PREPPED!
For the enthusiast who is planning to assemble an engine in their home garage, getting the block in a RACE-PREPPED state is a no-brainer. Our experienced staff performs important basic operations like:
• Deck milling +/- .0025”
• Main journal honing +/- .0004”
• Cylinder bore plate honing .001” oversized +/- .0005”
• Lifter bore honing +/- .0005”
• Block hot tanking
• Cam bearing installation
• Freeze plug installation
• Dowel pin and pipe plug installation
• Block deburring
• Machined surfaces sprayed with rust inhibitor
• Protective wrapping
More and more professional engine builders are also recognizing the benefits of ordering race-prepped blocks instead of endeavoring to perform these many tasks themselves. Many have realized that their time can be better spent doing critical assembly work such as degreeing in camshafts and setting up the valve train. By employing race-prepped World blocks the shop’s through-put can be accelerated, and there are demonstrated savings in terms of personnel, shop equipment, space and cash flow.

Whether you're an enthusiast or engine builder, save time and money!

Material: 357-T6 Aluminum
Deck Height: 10.725"
Deck Thickness: .600" minimum
Cam Bearings: Stock (can be machined for 60mm)
Camshaft Location: Standard or raised +.250"
Lifter Bores: .9054" with bronze bushings
Bellhousing: Dual (accomodates stock and GM)
Bore: 4.240" (hone to 4.250") or 4.490 (hone to 4.500")
Maximum Bore: 4.530"
Water Jackets: Expanded for better cooling
Lubrication: Priority main oiling system
Crank Clearance: 4.750" max stroke (with external oil line)
Main Caps: 4-bolts crossed nodular iron
Fuel Pump: OEM mount
Starter: OEM mount
Motor Mounts: Dual (front and side)
Cylinder Head Holes: Blind tapped to prevent leaks
Weight: Approximately 142 lbs.