5000cc engine will fit .
No
Any engine from 1987 and under that year will work.
that depends on the motor that it has.
2.6L (2555cc)
Yes it will go wright in with no problems. as long as the 1987 is a TBI and not a carburetor fuel system. May need to change exhaust manifolds and motor mounts,
Could be a V6, or V8
No. Entirely different engine.
NO the mazda and toyota are two totally different trucks.The starters are designed based on engine and transmission design.This part is specific and can vary based on a automatic vs a manual even on the same brand and year model.
maybe ablown head gasket
That requires a scan tool.
Yes , it is an interference engine
The oil filter on a 1987 Chevy S10 truck is located on the bottom, right side of the engine. It is positioned on its side to allow for easy removal and replacement. If the S10 truck is a 4+4 with the 4.3 engine, the engine oil filter would be accessed from the top, under the hood in the drivers side front corner of the engine compartment.