ATK Chevy LS 408 Boost/Nitrous Short Block 58 Tooth Flat Top SP32-B Engine
100% Satisfaction Guarantee Since 1978
We stand behind our solutions and customers.
- • Lifetime Tech Support
Product Overview:
Description
Build your own high-performance engine with the ATK SP32-B Chevy LS 408 Short Block. Its 408 C.I.D. displacement generates more power, while the cast iron engine block and forged components offer exceptional strength and durability. Assembled with Total Seal CS AP Steel Top Ring, this short block is suitable for boost or nitrous applications.
Short Block Specification
- Block: GM 6.0L Iron LQ4
- 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 +4cc Flat Top
- Piston Rings: Total Seal CS AP Steel Top Ring
- Compression Ratio: 64cc=11.9:1/66cc=11.6:1/70cc=11.1:1
- 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.