I worked for a Med Duty Isuzu dealer as a mechanic about 5 years ago. At that time, they 1 1/2 ton trucks had 5.7 Vortecs as the gas option. I saw a new one on thier lot yesterday, and it had a sticker saying it had the 6.0 LS engine in it. I called my former boss and asked if they had any wrecks on the lot, he said they were getting one later this week, Brand new 6.0 with 8200 on the clock. He said I can have it for $800, if I come pull it out. No biggie.
Anyone know the specifics on this engine? I looked on the net, but came up blank. Isuzu rates it at 340hp. I assume it has a pretty low RPM cam in it, but what im wondering about is the compression. I dont mind swapping cams, but I dont want to dig into the short block.

BTW: This engine would replace the 5.3 in my 06' ECSB.

 

According to this, it's just a regular ole' LQ4.
http://www.isuzucv.com/engines/gas_index.html
http://www.isuzucv.com/engines/gas_specs.html

Does he have another for sale?

 

same engine, U motor, or LQ4... that is what my 6.0 came out of!!!

 

Hp seems a bit down, at least on the rating anyhow. Or were the LQ4s rated at 300?
Perhaps due to more restrictive exhaust?

GENERAL
Engine Description V8
HP (Gross) 300 @ 4400 rpm
Torque (Gross lb ft) 360 @ 4000 rpm
Injection Sequential Port Fuel Injection
Displacement 364 CID (6.0 Liters)
Number of Cylinders - Cylinder Bore x Strokes in(mm) 8 - 4.00 (101.6) x 3.62 (92.0)
Operating Cycles 4
Compression Ratio 9.4:1
Firing Order 1-8-7-2-6-5-4-3
Valve Configuration Overhead Valves (2 Valves per Cylinder)
Valve Lifters Hydraulic Roller
Emissions Controls Evaporative System, Catalytic Converter, Positive Crankcase Ventilation, Returnless Fuel System
Fuel Shut Off 5900 to 6000 rpm
MATERIALS
Block Cast Iron
Cylinder Head Cast Aluminum
Intake Manifold Composite
Exhaust Manifold High Silicon Molybdenum, Cast Nodular Iron
Main Bearing Caps Powder Metal
Crankshaft Cast Iron with Undercut and Rolled Fillets
Camshaft Steel
Connecting Rods Forged Powder Metal
Additional Features Extended Life Spark Plugs, Extended Life Coolant, Oil Level Sensor, Oil Life System, Electronic Throttle Control, Compressed Natural Gas Option, Floating Pin Pistons, GF4 Oil, Rate Based Diagnostics

 

yes the lq4s in HD trucks were rated at 300hp due to exhaust and tune

the lq4s in the denalis were rated for 325hp with only an exhaust and tune change

 

Sounds right.
Nontheless, I am going to get it next week. Most likely gonna do a cam swap while its out and easy. After that, just have a tune done and roll like that. Ill post some pics and let yall know how it goes.

 

Hella find for 800 beans. Maybe you should work out a deal with the old boss and start farming out 6.0s.