i was wondering , what motors have parts that will work in an 89 305, a list will be a great help.

 

Any small block chevy.

But it really depends on whatyou want to interchange.

 

Correct. For the most part any part off any Gen I engine will be interchangable. There are differences that don't aloow you to use certain things though like differnt cam types, crank clearances etc etc...

Oh but I forgot to mention that valvetrain parts and cams from LT1 and LT4 Gen II motors will work.

 

intakes wil swap '55-'86

heads too

oil pans '55-'79 then changed for '80-'85, and then again for '86-up

water pumps '55-68 short and '69-up long

crankshafts changed to large journal most engines in '68,
flexplates and flywheels and cranks changed pattern in '86


exhaust manifolds '55-'68 ram horns, '69-'79 large style below spark plugs design, and then most '80-up with smogger smaller above sark plugs design, however TBI trucks and such went with the larger below plugs style but slightly minorly different in how the exits point out laterally

are a couple carryovers and exceptions for certain years models and such with some of these parts