-40%
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245
Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245

Gen II 426 Hemi Block 4.25 Inch Unfinished bore at 4.245

$ 2587.19

Availability: 100 in stock
  • Manufacturer Part Number: P5160209AA
  • Restocking Fee: No
  • Interchange Part Number: P5153862AD
  • Item must be returned within: 14 Days
  • Condition: New
  • Refund will be given as: Money Back
  • Return shipping will be paid by: Seller
  • Country/Region of Manufacture: United States
  • Returns Accepted: Returns Accepted
  • Brand: Mopar

    Description

    Cast Iron Siamese-Bore 426 Hemi Blocks give engine builders the flexibility for a
    larger bore. Blocks can be bored to the stock size of 4.245″, but are specifically
    designed to be bored larger. Mopar recommends that you sonic check each
    block if you plan to exceed as-shipped bore diameters.
    OLD PART NUMBERS P5155072AD P5160149AC
    manufactured by Callies/Energy
    When purchasing a new HEMI block regardless if it’s a rough or finished bore, You Must have your engine builder/machine shop hones the cylinder walls to the recommended cross-hatch finish for the piston ring combination you’re running. Each Builder and Piston Manufacture will be different. To achieve proper piston to cylinder wall clearance the final machine hone must be done to achieve your desired 4.24+ As with the lifter bore also.