I wonder if the 3.6L engine from the 2004 Cadillac CTS or SRX would fit in place of the stock 2.8L? Of course you'd have to find one with a good ECM in a junkyard or something, but check out the specs:

3.6L Displacement
Completely new design
RWD in CTS
RWD or AWD in SRX
Aluminum Engine Block & Cylinder Heads
Four Cam Phasing
Full chain drive valvetrain system
Aluminum Pistons With Floating Wrist Pins & Oil-Jet Capability
Forged Steel Crankshaft
Sinter-Forged Connecting Rods
Structural Aluminum Oil Pan with Steel Baffles different from FWD version
Dual-Stage Variable Aluminum Intake Manifold
Advanced Sequential Port Fuel Injection
Electronic Throttle Control with Integrated Cruise Control
Coil on Plug Ignition
Engine-Mounted Micro-Hybrid Engine Control Module
Optimized Exhaust Manifolds with Closed-Coupled Catalytic Converters
Fully Isolated Composite Camshaft Covers
Outstanding Noise, Vibration and Harshness Control
Horsepower 255 (Cadillac CTS only) <img src="/forums/images/graemlins/smile.gif" alt="" />
Horsepower 260 (Cadillac SRX only) <img src="/forums/images/graemlins/smile.gif" alt="" /> <img src="/forums/images/graemlins/smile.gif" alt="" />
Torque 252 <img src="/forums/images/graemlins/mrt.gif" alt="" />
Compression 10.2:1



I saw this on www.60degreev6.com and it just got me thinkin'...

Tom, since it's part of the 60 deg V6 family, you'd surmise that it should have the same bellhousing bolt pattern.

So, theoretically it's a possibility.

There may be any number of things that would preclude you stuffing it into a Trooper. However, you could make some inquiries at the 60degreeV6.com site and I bet some of the Guru's there could give a definitive answer.

They really get into the nitty gritty of it over there, just about the most in-depth site for 60 Deg GM V6 Fanatics that I've seen!

Cheers.............ed <img src="/forums/images/graemlins/kewl.gif" alt="" />