You may have thrown a rod or broken the crankshaft. Remove the oil pump and metal pan and see what you find. A worn piston pin or water in the piston would cause this. I suspect you will find that you have some very serious damage.
The 2001 model of the Light-Duty Silverado 1500, had an option of four engine sizes; a 6.0L Vortec V8 engine, a 4.3L Vortec V6, a 4.8L Vortec V8 or a 5.3L Vortec V8. The Heavy-Duty 1500HD comes with three engine options, these are 6.0L Vortec V8, 8.1L Vortec V8 and a 6.6L Duramax V8
NO. That would be the TBI / throttle body injection engine Not a vortec. The vortec will not work in the 91.
As far as a direct bolt in NO. But if you have the smarts and the know how, you can put anything in there.
No, the LS2 is an all aluminum 6.0 liter engine. The 5.3L engine in the 2000 Silverado is an LM7 version of the Vortec 5300.
A 2000 Silverado 5.3 Vortec that is hard to start and misses on one side of the engine might have a problem with the coil pack or the spark plugs. It could also mean that the block is cracked if the engine is prone to overheating.
A 2000 Chevy Silverado K2500 with 6.0 Vortec engine.
The 5.3 liter Vortec Engine on the 2000 Chevy Silverado has a tapered crank shaft. The crank pulley has no woodruff key, is not indexed and is pressed on.
No it is not. It is a factory TBI / Throttle body injection, None roller camshaft 5.7L 350 engine.
put a higher voltage ingition module on it
look om the passengers back side of the valve cover. You need to take off the vortec cover.
The Mass Air Pressure sensor is located at the top rear of the engine, close to the firewall. Remove the Vortec engine cover (I believe it's an 8mm), and from the driver's side, find the rear-most sensor connection (it has 3 wires), and follow it. The sensor looks like this:
no. The 5.7 Gen II engine was phased out. The new GEN III engines were in use in 2000 (4.8L, 5.3L, 6.0L) Among many other engine choices.