The headers for a 350 and 305 are the same.
They are basically the same heads, If the 93 350 is a vortex motor.
Yes their the same block....
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
The headers would be the same anyway, so you can order headers for the 83 and be all set.
no!
adding headers will allow engine to breath better and boost up horsepower but not by much, headers also make you vehicle louder with pipes.
Yes, and well.
Yep! The transmissions are completely interchangeable.
carb, cam, intake, headers, heads, msd igntion, or a 350
there is no such thing as a votec 305.350 only and v6
Possibly if Chevy made a 300.
I don't know if they're vortex, or what that means, but they were used on 305's and 350's, '87 and up, and they have 1.94 intakes and 1.50 exhausts.