Engine comparison

C6 · C6 base

C6 · C6 base

•Run the VIN through NHTSA to confirm all 5 recalls (wiring, steering column, roof, brake lines, power steering hose) have been completed

•Inspect the fuse box and wiring harness under the dash for any signs of heat damage, melting, or burnt smell

•Start the engine cold and listen carefully for harmonic balancer vibration or drivetrain shudder, rev it and feel for unusual vibration

•During the test drive, confirm the active handling system does not trigger unexpectedly at low speed or in normal cornering

•Check oil level before purchase and monitor it over a short drive, blue smoke on cold start or deceleration indicates valve stem seal wear

•On targa-top models, physically operate the roof panel latch mechanism and inspect seals for cracking or water ingress stains inside the cabin

•Confirm the engine code stamped on the block matches LS2 and not a later LS3, since both were fitted to the C6 platform across its run

C6 · C6 base

C6 · C6 base

C6 · C6 base

✓Legendary GM LS small-block architecture with proven long-term durability

✓Robust internals capable of handling significant power increases without bottom-end failure

✓Huge aftermarket support, parts and tuning expertise widely available

✓Community consensus rates the 6.0L V8 as genuinely reliable on stock builds

✓No AFM/DoD cylinder deactivation system to cause lifter failures, unlike later LS engines

✓Affordable running costs relative to European performance alternatives

✓Simple pushrod design with fewer failure points than overhead-cam performance V8s of the same era

C6 · C6 base