6.7 vs 7.3 Power Stroke: Which Diesel to Build (and How)
A plain-English comparison of the 7.3, 6.0, and 6.7 Power Stroke — reliability, common failure points, and the parts each engine needs most, from head studs to tuners.
Every Power Stroke generation rewards a different build strategy. Pick the wrong first mod and you’ll chase reliability instead of power. This guide compares the 7.3, 6.0, and 6.7 and points you to new parts on Amazon and used/OEM parts on eBay Motors.
7.3 Power Stroke (1994–2003): Simple and Durable
The 7.3 earned its reputation on mechanical simplicity and low cylinder pressure. It won’t win a drag race stock, but it runs forever. Wake it up with a tuner and freshen the fuel system — high-mileage trucks benefit from a lift pump and fresh injectors.
6.0 Power Stroke (2003–2007): Powerful, Needs Sealing
The 6.0 makes strong power but is famous for blown head gaskets, sticking EGR, and failing oil coolers. Done right — head studs, an EGR and cooling overhaul — it’s a genuinely good engine. Do these before chasing power.
6.7 Power Stroke (2011+): Modern Muscle
The 6.7 is the most powerful and refined of the three and responds dramatically to tuning. Add a tuner, an air intake, and exhaust airflow, then support bigger numbers with fuel-system upgrades.
Where to Buy
- New parts for any Power Stroke: Amazon Automotive — browse by category.
- Used and OEM components: eBay Motors, using the buttons above.
Shopping used or OEM? Try eBay Motors
Live listings for the parts covered in this guide — prices set by the seller.