Item # 22692 BRAND: ATK

ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block Engine 58 Tooth -29cc Dished SP36-G4-B

ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
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ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
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ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block Engine 58 Tooth -29cc Dished SP36-G4-B

Description

This ATK Chevy LQ9 Gen IV 408 replacement short block is designed for high-demanding engines. It includes Manley 2618 forged pistol and Total Seal CS AP with steel top ring gapped to meet the needs of engines used for boost or nitrous applications. This short block comes installed with camshaft bearings, freeze plugs and oil galley plugs.

Short block Specifications:

  • Block: GM 6.0L Iron Gen IV
  • Bore/Stroke: 4.030 x 4.000
  • Displacement: 408 C.I.D.
  • Crankshaft: Manley 4340 Forged 4.000" Stroker Internally Balanced 58 Tooth
  • Connecting Rods: Manley 4340 Forged H Beam 6.125" ARP 2000 Bolts
  • Pistons: Manley 2618 Forged -29cc Dished
  • Piston Rings: Total Seal CS AP with Steel top ring gapped for nitrous/boost
  • Compression Ratio: 64cc = 9.3:1 / 68cc = 9.0:1 / 72cc= 8.7:1 (can vary due to deck height/gasket thickness)
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Freeze Plugs: Brass Installed & Sealed
  • Oil Galley Plugs: Installed & Sealed
  • Weight: 285

Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our GM Short Blocks are most commonly packaged as the engine block assembled with Pistons, Piston Rings and Crankshaft installed.

ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.



Don't forget the engine paint!
Engine Paint

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ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block Engine 58 Tooth -29cc Dished SP36-G4-B
Retrieving Price...
Reg. $5,149.99
$5,149.99
Out of stock