alloytec vs ecotec

Alloytec vs Ecotec is the Holden V6 family feud: the newer 3.6-litre DOHC alloy versus the old 3.8-litre pushrod battler.

• Ecotec (VT–VY 3.8L) — Pros: lazy low-down torque, simple and tough, parts are cheap; Cons: thirstier, a bit coarse, intake manifold gasket and balancer wear, and old 4-speed autos blunt it.
• Alloytec (VZ–VE 3.6L) — Pros: more power and refinement, better autos, improved economy; Cons: timing chain stretch on early engines, coil/idle niggles, and it likes diligent servicing with quality oil.

Pick based on your priorities: indestructible simplicity and budget mods (the L67 supercharged crowd is a riot) or smoother manners and newer tech, but keep maintenance funds aside either way.

If you go Alloytec, evidence of chain replacement or updated tensioners is a big tick. No winners declared here, just two flavours of Aussie six doing their best pub-debate impression.