Description: Boost District Combined forces with GM Performance to bring you this 1500hp Dart 427cui engine paired with our BoostDistrict Gen2 TVS2650. With 18psi Boost for your Classic Car/Hotrod, this engine is barely working hard to make our target power with room for future growth. This Package includes: Dart 427 Engine with Limited warranty BoostDistrict TVS2650 Supercharger kit Fuel Injectors With Billet AN rails Optional: 3 row Belt Drive kit (Alternator, Water pump, Power Steering, Tensioner, Supercharger drive) Dart 427 Tech Specs Engine Specifications:• HP: 650 (Naturally Aspirated)• TQ: 590 (Naturally Aspirated)• Block: Dart SHP LS Next Cast Iron• Bore/Stroke: 4.125″ x 4.000″• Displacement (cu.in): 427• Crankshaft: Dart Billet 4.000″ Stroke Internally Balanced 58 Tooth 6 Bolt• Rods: Manley H Tuff H Beams 4340 Forged 6.125″ ARP 2000 Bolts• Pistons: JE Ultra Dished 2618 Forged with Thermal Coating, Lateral Gas Ports, .200″ Pin• Compression Ratio: 10.2:1• Rings: JE Pro Seal with Carbon Steel Top Ring• Custom Spec camshaft• Cylinder Heads: Frankenstein M311 72cc/273cc with Black Nitride Stainless Steel Severe Duty Valves, Titanium Retainers and PAC .700″ lift Springs• Head Fasteners: ARP Head Studs• Head Gaskets: Cometic MLX• Lifters: Johnson 2116LSR Link Bar• Rocker Arms: OE powdered metal 1.7 ratio with Trunnion Upgrade• Oil Pump: Melling 10295 Standard Volume High Pressure Recommended Components:• Oil- 20W50• Oil Filter: Wix• Fuel System- triple walbro 450 or 525 pumps.• Balancer- SFI Internally Balanced• Flex plate/Flywheel- Stock Internally Balanced• Timing- Set to Factory Specifications Via PCM Module (Tune Required)• Spark Plug: NGK BR7EF @.028• Tuning: Chassis dyno tune required• Firing Order- Stock• Fuel – 91+ Octane for 1000hp, e85 recommended for further power.• Recommended Stall Converter- 2800+ based on application• Headers- 1 7/8”+ depending on application Notes: This engine is built to handle up to 25PSI of Boost from either a Turbo or Super Charger. On some instances- depending on location and liftgate services (if required), additional shipping cost might be added on the order. Contact us to get an exact shipping quote for your location.