2014 Corvette Powertrain - Preliminary Specificiations
As of 9:30am 10-24-2012: (Click on the images for a larger view)
2014 LT1 Smallblock Specifications:
- Engine type: 90-degree V-8 with overhead valves; continuous VVT
- Displacement: 6.2L (376 cubic inches)
- Bore x Stroke (in / mm): 4.06 x 3.62 / 103.25 x 92
- Cylinder block: cast aluminum with nodular main caps
- Main bearing fasteners: six, including two cross-bolts per cap
- Crankshaft: forged steel
- Connecting rods: powder metal, 6.125 inches in length
- Pistons: eutectic aluminum alloy
- Compression ratio: 11.5:1
- Cylinder heads: 319-T7 cast aluminum with 59.02cc combustion chambers
- Valve angles (degrees): 12.5 intake, 12 exhaust
- Intake valves: 2.13 inches (54mm) hollow
- Exhaust valves: 1.59 inches (40.4mm) hollow sodium
- Camshaft: Hydraulic-type with tri-lobe for fuel-pump drive
- Camshaft lift: 0.551-inch (14mm) intake / 0.524-inch (13.3mm) exhaust
- Camshaft duration: 200-degrees intake / 207-degrees exhaust (at 0.050-inch)
- Lobe separation angle: 116.5 degrees
- Fuel delivery: direct injection
- Intake manifold: "runners in a box" design; composite construction
- Throttle: 87mm electronically controlled throttle body
- Ignition: 58X with individual coil-on-plug and iridium-tip spark plugs
- Horsepower / kW: 450 / 335 (estimated)
- Torque — lb.-ft. / Nm: 450 / 610 (estimated)
- Max. engine speed 6,600 rpm (fuel cutoff)
New 6.2L LT1 on the left vs. current Corvette LS3 6.2L engine.
New cylinder heads will have slightly splayed valves, approximately 2.5 degrees
Raised intake ports with reversed position of intake and exhaust valves.
David Kimble cutaway
50 lb-ft increase in torque in the 2000 to 4000 rpm range
The 2014 LT1 engine will be built at the Tonawanda engine plant