4.3 block compatibility?

[Darin]

I have the opportunity to get a *FREE* late 90's/early 90's complete running 4.3 engine, transmission and transfer case out of a 4x4 Blazer. I'm unsure if it's a vortec or not as I haven't seen it yet. I was told if I went to look at it I had to take it.

I did a brief search, and found that there are 2 blocks, oddfire and evenfire, and the difference between the two. I don't know, however, which is best for what application, which is stronger, etc. What should i look out for on this? What would be usable? Could I possibly rebuild the block instead of using the stock engine in my typhoon, ie take it all out, put it on a stand, and keep for when/if the time comes to sell the typhoon?

Let me know what you all think! Thanks!

 

[NecroWolf]

Re: 4.3 block compatibility?

your "free" motor is an even fire motor, gm did not release an oddfire to the public. there is one block, two styles of crank. chances are if you didn't give over 2k for the crank its evenfire. the only lock difference would be with or without balance shaft. both fit fine but the oil pan rails are different.