BluePrint Engines GM 400 C.I.D. 500 HP Base Long Block Crate Engines

Not your grandpa's 400—BluePrint Engines GM 400 c.i.d. 500 hp base long block crate engines are the new "mighty mouse" small blocks. Their base packages come complete with oil pans, valve covers, and front timing covers—letting you finish the engine out, your way, with fuel and ignition systems. They're also balanced, blueprinted, and dyno-tested. BluePrint Engines GM 400 c.i.d. 500 hp base crate engines feature: * Cast iron block with 4-bolt mains * Compression ratio: 10.3:1 * Forged crankshaft * OEM-type connecting rods * 150,000 psi rod bolts * Forged pistons * Hydraulic roller cam * BluePrint aluminum heads, 64cc chamber, with raised exhaust ports * Dyno test results shipped with engine * 30-month/50,000-mile warranty Show Less