The LT family of advanced-performance engines continues to grow, so does Chevrolet Performance’s portfolio of production-based crate engines, from the LT1 and supercharged LT4 to the all-new LT5 -the 755-horsepower supercharged engine from the 2019 Corvette ZR1. It’s the most powerful production-car engine ever from Chevrolet and LT is the next generation of Chevrolet Performance!

SPECS:
Engine Type: Gen V Small-Block V-8
Displacement: 454
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block: Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft: Forged steel
Connecting Rods: Forged
Pistons: Forged aluminum
Camshaft Type: Hydraulic roller
Valve Lift (in): .592 intake / .651 exhaust
Camshaft Duration (@.50 in): 222 ° intake / 233° exhaust
Cylinder heads: CNC ported A356T6 Rotocast aluminum, as cast with 65.5cc chambers
Valve Size (in): 2.130 intake / 1.590 exhaust
Compression Ratio: 10:5
Rocker Arms: Investment-cast, roller bearing trunnion
Rocker Arm Ratio: 1.81:1
Recommended Fuel: Premium pump
Maximum recommended RPM: 6,600
Reluctor wheel: 58x