I'm looking to put a LS style alum motor in my Corvair and want a 4.8 or 5.3 Alum block to use. I'd like a bare block so I can build it, but I'll take a short block if you have one cheap enough.

 

Iam going to sell my 4.8 from a gmc sierra dont know much about motors but if this is what u r looking for will have for sale about next week when i get my 6.0 fro more info im me

 

Let me know please.

 

if you want aluminum, then it would be only available in a 5.3L and even then it's kinda on the rare side (only the HO 5.3L).

on all V8's there was aluminum heads, the actual block weight from what I'm told is less than 100 lbs (but that figure may be wrong).

you can get a 4.8L long block for only a couple hundred bucks. Of course you could take a 4.8L/5.3L bare block, bore it and throw in a LS1 rotating assembly for a cheap iron block LS1

 

I'm trying to stay alum block for weight, but if I got an iron block motor cheap enough, I could be swayed.

 

You'd probably have better luck finding an ls1 for a decent price than you would a aluminum 5.3

 

Ebay... There is a guy with a new block for 599 obo. I am think about the same thing just dont have any money right now.