BoostDistrict is proud to announce that we finally have an affordable Long block that is rated for 1000hp and 15psi Boost (turbo or supercharger). Introducing our 408ci LS 1000HP Rated Power Adder Longblock. This engine is perfect for those looking for a budget-friendly option without compromising on strength. With its capability to handle high levels of boost, you can feel confident in its performance.    Engine Specifications:• HP: 500, TQ: 470Naturally aspirated • Rated for 15psi or 850HP Boosted application• Block: GM 6.0L Iron LQ4• Bore/Stroke: 4.030”x 3.622• Displacement (cu.in): 370• Crankshaft: OEM GM 24 tooth reluctor wheel• Rods: K1 4340 Forged 6.125” H Beam with ARP 2000 Bolts• Pistons: Forged 9.3:1 compression• Rings: Moly with Steel Top Ring• Camshaft: Hyd. roller• Cam Specs: 226/230 @50 .600/.575 113LSA• Cylinder Heads:LS3 aluminum 68cc 2.165”/1.590” valves• Rocker Arms: OE powdered metal 1.7 ratio with Trunnion Upgrade• Oil Pump: Melling 10296 High Volume Recommended Components:• Oil- 10W30• Oil Filter: Wix• Fuel System – OE EFI System or Aftermarket• Intake – Stock Fuel Injected or Aftermarket• Balancer- Stock Internally Balanced• Flex plate/Flywheel- Stock Internally Balanced• Timing- Set to Factory Specifications Via PCM Module (Tune Required)• Spark Plug: NGK BR7• Firing Order- Stock• Fuel – 91+ Octane• Recommended Stall Converter- 2800+ based on application• Headers- 1 7/8” depending on application Part number: ODG6.0LS Notes: This engine is designed for mild forced induction applications up to 15PSI.