Yes it is the same engine. Both of them are TBI / Throttle body injection engines.
YES.
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the world will never know...
The block itself will fit, and your best course of action will be to retain the electronic controls/engine computer and all electrical components from the 1997.
what is the preceger for replacing the head gaskets on a 1993 chevy suburban 4x4 350
on top of the engine, towards the front to the left of where the tube from the radiator goes in.
Firing order: 1-8-4-3-6-5-7-2
Yes.
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will a 1995 Chevy 350 lt1 motor work in a 1990 Chevy pick up
No. The bore size is different between a 305 and 350. The 350 bore size is larger.
yes