externally the SBC's should be the same between your 283 and 350. And no, to my knowledge there is no difference on the engine if it came out of a 4x4 or 4x2. There are 4-bolt engines and 2-bolt engines, both with the same casting patterns.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
