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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
Is a 2.8 liter engine a 305?
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 word you are looking for is interference not interface. The answer is no, the 4.3 liter Chevy is not an interference engine.