Will Van
GOLD Star
I am thinking about converting my 1977 FJ40 to diesel. I have Crushers swap kit with engine mounts, radiator bracket, fan shroud, and trans mount for the H55. The kit works with any 1H series engine.
I thought this would be a good opportunity to compare and contrast the various advantages and disadvantages of this series of engine, specifically related to engine swaps for trucks in USA. Yes, all of this information is available within the site, or with a quick google search, but I would like to consolidate it into one place with a digestible format. Contributions and opinions welcome.
I have deliberately excluded the FTE because it is electronic, and the focus of this thread is on mechanical IPs.
Let's get started.
1HZ Engine
Pros:
Cons:
I thought this would be a good opportunity to compare and contrast the various advantages and disadvantages of this series of engine, specifically related to engine swaps for trucks in USA. Yes, all of this information is available within the site, or with a quick google search, but I would like to consolidate it into one place with a digestible format. Contributions and opinions welcome.
I have deliberately excluded the FTE because it is electronic, and the focus of this thread is on mechanical IPs.
Let's get started.
1HZ Engine
Engine code | 1HZ |
Layout | Straight-6, vertical |
Fuel type | Diesel |
Production | 1990 to Present |
Displacement | 4.2L, 4,164 cc (254.1 cu in) |
Injection pump | Mechanical |
Power adder | None |
Horsepower net | 129 HP at 3,800 rpm 133 HP at 4,000 rpm |
Torque output | 206 ft·lb at 2,200 rpm 210 ft·lb at 2,200 rpm |
Pros:
- Exceptionally Simple
- Still in Production
- Relative availability in USA for Engines and Replacement Parts
- "Short" A/C Clutch
- H55F Bellhousing and Input Shaft Available
- Valve Adjustment???
Cons:
- Underpowered (Same or worse power/torqe figures compared to 2F)