Engines can make many different noises and people will describe them as knocks, pings, rattles or thumps. A true "knock" is caused by rod or main bearings hitting against the crankshaft. The general cause of that is either too much space between the bearing and crankshaft or insufficient oil pressure to maintain the distance between the bearing and crankshaft. Sometimes you can use a heavier grade oil so that the oil doesn't leak out of the bearing space so quickly. If you're currently using 5 W 15, go to a 10 W 30 or maybe even a 15 W 50. If you can't make the noise go away with that, either the bearings are too worn or it's a different problem. If the engine has less than a couple hundred thousand miles, the only reason for bearings to go bad would be inadequate maintenance. Other problems that can result in noises like that are: Piston slap. That's when the skirt (lower part) of the piston is slightly worn and is enough smaller than the cylinder that the skirt "pops" from one side to the other as the engine runs. It's more of an annoyance than a real problem, especially since piston slap typically goes away as the engine warms up a little. It typically takes just a few seconds to go away. If it's piston slap don't worry about it until the engine is rebuilt. Piston slap is quite common among many of the GM 350's, especially in engines that go short distances a lot or don't get adequate maintenance. Fuel "pinging". That's when the fuel ignites too quickly and causes a sound like something rattling around inside the engine when you step on the accellerator. Use a fuel octane booster or change the engine timing. Hydraulic lifter noises sounds more like a tapping sound and is usually caused by inconsistent oil changes.
no
The small block chevy turns in a clockwise rotation.
No.
Yes it will, It should already have a small block Chevy in it , if it's a V8.
No.
YES. If you look at the passenger side of the engine block just in front of the starter you will see a small plug that is screwed into the side of the block. That is a coolant drain plug so you can get all the coolant out of the block. Remove it and screw the knock sensor in it's place.
One can purchase a Chevrolet small-block engine from the original manufacturer or your local car dealer. One can also purchase a small-block engine from eBay.
350, to 400lbs.
350, to 400lbs.
I have one question for you: how is a 350 in a 1998 GMC not a small block??
302 small block Chevy
About 325.