BluePrint Engines PS5401CT - 540 CID GM Big Block Compatible Longblock - 670HP

Horsepower 670HP Torque 660FT/LBS Compression Ratio 10.0 to 1 Block New BluePrint block,4 bolt main, 1 piece rear main seal, Standard Deck Pistons Forged Rotating Assembly Forged Steel Crank - 4.250 in. Stroke and Forged 6.385 in. Rods Heads BluePrint Engines Aluminum Cylinder Heads Camshaft Specs Hyd Roller - .647 Int / .647 Exh lift, 248 Int 254 Exh dur @ .050, 112 LSA Build your high-performance project with this BluePrint Engines crate engine, dyno-tested to produce 670 HP and 660 lb-ft of torque. This powerhouse features a high-strength cast iron block, forged crankshaft, forged pistons, and aluminum heads. This long block configuration includes valve covers, an oil pan, a timing cover, and a harmonic balancer, providing a robust foundation for your custom build. Ideal for privateer builders, grassroots garages, and independent shops working on non-EGR projects.