ATK Performance 408 Stroker Shortblock, roller block, forged

ATK Performance 408 Stroker Shortblock, roller block, forged

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$5,095.00

SKU: ATK-SP25

Part# SP25

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ATK Performance 408 Stroker Shortblock, roller block, forged

This shortblock is a great starting point for a naturally aspirated or boosted street engine capable of 600+hp. Assembled and ready to bolt on your heads, cam, intake etc. Here's the specs.

  • Block: Seasoned OE Roller Block
  • Bore/Stroke: 4.040 x 4.00
  • Displacement: 408 C.I.D.
  • Crankshaft: SCAT Nodular 4.00" Stroke 1 Piece Seal Internally Balanced 0oz.
  • Connecting Rods: Scat 4340 Forged I Beam 6.200 w/ARP 8740 Bolts
  • Pistons: Forged +22cc Dish w/2 Valve Reliefs
  • Piston Rings: Moly Rings
  • Compression Ratio: 58cc=10:1/64cc=9.4:1
  • Camshaft Bearings: Installed and Clocked to OEM Position
  • Freeze Plugs: Brass Installed and Sealed
  • Oil Galley Plugs: Installed and Sealed

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