Hello .. thanks for the donation ..much appreciated
The 03/04 CTS is fitted with the new LA3 design !
A Component Comparison from the Previous Year
The 3.2 liter, LA3, and 2.6 liter, LY9, engines have replaced the 3.0 liter, L81 engine.
Some of the new features include:
Cylinder bores have enlarged to 87.5 mm (3.45 in) for the 3.2L and deceased to 83.2 mm (3.28 in) for the 2.6L.
Crankshaft stroke has been changed to 88 mm (3.47 in) for the 3.2L and 79.6 mm (3.13 in) for the 2.6L.
The 3.2L has a forged steel crankshaft.
The 2.6L has pressed fit piston pins.
A new oil filter adapter that allows room for the close-coupled catalytic converter.
The ECM is now located on the right side camshaft cover.
Multi-wall steel exhaust manifolds are used to decrease loss of exhaust gas heat.
A new structural oil pan is used.
Secondary Air Injection has been removed on both engines.
Flywheel adapter and retainer has been deleted.
A new engine block heater is being used.
Timing belt idler pulley has been relocated, to minimize belt noise.
hope this helps
Monday, November 2nd, 2009 AT 5:01 AM