this might sound kind of stupid but i dont have a clue if my engines a 305 or a 350 i ve had people tell me both, its suppose to be a 305, but iv heard thta its not the original engine that came in my car and that its a 50, the block color is orange, but i belive it was painted when it was rebuilt, the car is a 1983 chevy camaro z28. is there any differnces that i could see that would tell me the difference in a 305 and a 50 so i know what engine my car has in it, its suppose to be a 305. Is there a differece in starter size betwen the engine or anything, thanks

 

They are externally identical. Since the engine was cleaned and painted, it should be easier to read the casting numbers on the left rear ledge of the block:



Check the numbers at www.mortec.com and you'll find out exactly what you have.

 

If the motor is original it is a 305.

Now to know for sure you need to do what vader said and look at the casting numbers that are on the bellhousing flange. Find the numbers and I will look them up for you.

 

numbers. we need numbers, no one here can help you at all without numbers

get them posted here and then we can help you

otherwise all we can do is speculate and waste our time doing so

 

ok ill look at the block number and post it on here, shulda done it the first time sry

 

assuming the block hasn't been decked you can look for a pad under the alternator and get the number off that.

 

there is a number on the pad behind the alternator the # is 11191c

 

I'm having a case of deja-vu...
https://www.thirdgen.org/forums/faq-board/209426-305-350-a.html
Does anybody search before posting anymore?