Smeding SBC406SB Small Block Chevy 406 ci. Short Block:

• Block:
  • 4.125 in. Bore
  • Heavy-Duty 4-Bolt Mains
  • 9.025 in. Deck Height
  • 1-Piece Rear Main Seal
  • Machined for OE Hydraulic Roller
• Crankshaft:
  • 4340 Forged Steel
  • 3.800 in. Stroke
  • Internal Front / External Rear Balance
• Connecting Rods:
  • 5140 Forged Steel I-Beam
  • 5.700 in. Length
  • 3/8 in. Bolts
  • Floating Wrist Pins
  • 12pt 3/8 in. SP8740 Fasteners
• Pistons:
  • 2618 Forged Aluminum
  • 18 cc Dish
  • Coated Skirts
• Rings:
  • Stainless Steel Top
  • Napier 2nd
  • Low Tension Oil
  • 1.2 mm, 1.2 mm, 3.0 mm
• Bearings:
  • King Bi-Metal
• Cam Bearings:
  • Dura-Bond, Installed
• Compression Ratio:
  • 10.0:1 w/64 cc Heads
  • 9.3:1 w/72 cc Heads
• Brass Freeze Plugs - Installed
• Oil Plugs - Installed
• Dowel Pins - Installed

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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