12687020 LT5 Long Block Engine 755 HP 715 lb- ft Dry Sump
Limited inventory available, call to orderAs the power behind the 2019 Corvette ZR1, the new supercharged 6.2L LT5 represents the pinnacle of Chevrolet’s performance: It’s the most powerful engine ever offered in a Chevy production vehicle.
An all-new, more efficient supercharger on the LT5 is based on the same effective four-lobe design as the LS9 and LT4 air compressors, but it is larger. At 2.65 liters of displacement, it is 64 percent larger than the LT4’s 1.7-liter compressor and pumps out more boost.
LT5 Tech Specs
- Part Number: 12687020
- Engine Type: Gen V Small-Block V-8
- Displacement (cu in): 376 cu in (6.2L)
- 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 powdered-metal steel
- Pistons: Forged aluminum
- Camshaft Type: Hydraulic roller (12664572)
- Valve Lift (in): 0.492 intake / 0.551 exhaust
- Camshaft Duration (@0.050 in): 189° intake / 223° exhaust
- Cylinder Heads: A356T6 Rotocast aluminum; as cast with 65.5cc chambers
- Valve Size (in): 2.130 intake / 1.590 exhaust
- Compression ratio: 10:1
- Rocker Arms (P/N 12619829): Investment cast, roller bearing trunnion
- Rocker Arm Ratio: 1.81:1
- Recommended Fuel: Premium pump
- Maximum Recommended RPM: 6,600
- Reluctor Wheel: 58x
- Balanced: Internal
