World 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 426H features dual pattern Chrysler/GM bellhousings & more efficient lubrication. This is the ultimate block for Chrysler applications!

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: .9020" with unfinished bronze bushings
Bellhousing: Dual (accomodates stock and GM)
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.