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Not too much, really. Regular oil changes help a lot. Older pre-1987 versions required frequent valve cover gasket replacement. If using more than 12-1 compression, pay attention to the quality of your head gaskets. No such thing as too good.
Substituting a high volume oil pump and a deeper oil pan can be helpful for heavy duty applications.
What grade of oil is best in your 5.3 liter Chevy engine?"
The map sensor for a Chevy 5.3 liter engine is on the top of the intake. It is at the back of the engine.
No. They are different
The 7.2 liter is a Duramax diesel.
YES
Yes.
how much horse power does a stock 4.8 liter vortex Chevy engine have
no
The Chevy 5.7 liter is 350 cubic inches
I think the closest thing to the 4.6 liter engine size would be the old Chevy 283 ( GM has a 4.8 liter V8 engine )
The PCV valve on a 2002 Chevy Suburban 6.0 liter engine is located in the engine. You cannot miss the valve.
The word you are looking for is interference not interface. The answer is no, the 4.3 liter Chevy is not an interference engine.