Tapage said:mmmm I thought that 1HZ engine was awsome engine .. but 1HD-T is other history ..
170 HP from Stock, you may up the bar on turbo, and catch maybe 200 HP with out propane.
But, I don't know about bolt on propane inyection kit .. ! the issue is as always $$$ hoy much you can spend in your engine to get real power ..
1HD-FTE - 200bhp from stock and even better torque, just the electronics and 24 Valves to deal with. Still a great engine through with all the reliability of the other 1H engines.
Intercooler from Australia will release another 25% power and torque and improve the economy for around 1500 bucks or there abouts.