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Ray Barton / A2Speed 6.4 VVT HEMI Engine to 426 HEMI Stroker Short Block

SKU:A2S-426HSB64
Dimensions:42 x 42 x 42
Weight:360.0 lbs
Manufacturer:A2Speed
Original Price: $5,749.99
On Sale For:  $4,990.99
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  • Description
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A2Speed 6.4 to 426 Short Block Specs

  • Displacement: 426 CID (7.0L)
  • Bore: 4.090
  • Stroke: 4.050
  • Boosted Compression Ratio: 9.8 : 1
  • Naturally Aspirated Compression Ratio: 11 : 1
  • Warranty: 12 month / 12,000 mile

HEMI Rotating Assembly Components, Features, & Benefits:

Creating Your HEMI Short Block:

Core Disassembly, Assessment & Validation

  • Core Inspection
  • Core Disassembly (If Required)
  • As Received Measurements
  • Hot Tank Block
  • Clean Oil Galleys
  • Deburr Edges as Required
  • Chafer all 90 degree corners
  • Radius bottom of Cylinder Bores
  • Chase Threads (If Required)

Machine Shop

  • Verify Deck Surface
  • Verify Bore Centerlines
  • Hone Cylinders w/Honing Plate
  • Install Billet Main Caps (Optional)
  • Line Hone
  • Supply and Install Plugs at Oil Squirters
  • Clearance Block / Pistons (If Required)
  • Balance Rotating Assembly
  • Cut Crankshaft for Woodruff Key (If Required)

Short Block Final Assembly

  • Paint Block 6.1, 6.4: HEMI Orange, 5.7: Black
  • Install Crankshaft and Main Bearings, Maintain 0.0003 – 1” Tolerance @ bearings and 0.0005" Runout
  • Cut and Fit Piston Rings
  • Install Pistons and Connecting Rods; Maintain 0.0003 – 1” tolerance @ bearings and 0.0005” tolerance @ piston to cylinder wall.
  • Install Rear Main Seal
 
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