Silver SS
April 25th, 2004, 10:02 PM
the new 2005 Corvette will feature the most powerful standard engine ever in Corvette history: the 400 horsepower, 6.0-liter, small-block V-8. The new 6.0-liter LS2 is part of the fourth generation of GM's small-block engines. The small-block debuted in 1955 with 265 cubic inches and 195 horsepower. Since then, this legendary family of engines has been an integral component of Corvette's performance history.
Compared to the Gen III-based LS1, the LS2 incorporates several significant changes that help improve performance, reliability and serviceability:
-All-new aluminum block casting incorporates provisions for external knock sensors and revised oil galleries; external sensors improve serviceability
-Cylinder bore diameter increased to 101.6 mm (4.00 inches), increasing displacement to 6.0 liters
-Flat-top piston design with lower ring tension reduces friction
-Piston floating wrist pins help quiet the engine
-Revised exhaust manifolds are 33 percent lighter
-Compression raised to 10.9:1
-Engine redline raised to 6500 rpm
-Revised and more powerful engine mototronics incorporate all electronic throttle control functions.
Compared to the Gen III-based LS1, the LS2 incorporates several significant changes that help improve performance, reliability and serviceability:
-All-new aluminum block casting incorporates provisions for external knock sensors and revised oil galleries; external sensors improve serviceability
-Cylinder bore diameter increased to 101.6 mm (4.00 inches), increasing displacement to 6.0 liters
-Flat-top piston design with lower ring tension reduces friction
-Piston floating wrist pins help quiet the engine
-Revised exhaust manifolds are 33 percent lighter
-Compression raised to 10.9:1
-Engine redline raised to 6500 rpm
-Revised and more powerful engine mototronics incorporate all electronic throttle control functions.