michaelduncan56

I have a 93 S10 with a V6 5 Speed. Was wanting to put a LS1 383 Twin turbo in it. I was told to find a Aluminum LS1 block out of a 88 to 92 Firebird or Camaro. But i cant find any Aluminum blocks only Iron. Other than Aluminum being lighter is it really better than going Iron.

Darth_V8r

iTrader: (4)

I hope that was typos. Ls1 was 98-02. 88-92 was SBC which were all iron.

For twin turbo, iron would be better but you will find that is either a 5.3 or a 4.8 out of a truck. The 98-02 camaro v8 were all aluminum 5.7s

michaelduncan56

Ok, Thats what i thought 98 to 02 but my buddy kept saying 88 to 92 and every one i called told me it would be iron.

michaelduncan56

Now i was also told i could turn a 5.3 into a 5.7 is that right

Darth_V8r

iTrader: (4)

Yup! Bore it out and use the 5.7 rotating assembly. But most 5.3 are iron. Just being clear. The 5.7 were all aluminum.

Darth_V8r

iTrader: (4)

Might be cheaper to get a 6.0. They were iron, 4” bore. Great boost motor

Jimbo1367

Aren't L33's aluminum 5.3?

I wouldn't get hung up on 5.7 vs. 5.3. Most would want the slightly thicker cylinder walls for more boost. Besides, 5.3Ss are proven themselves with boost.

Darth_V8r

iTrader: (4)

Yes. MOST. Not all. 5.3 are iron

ddnspider

iTrader: (26)

Zero reason to get a truck motor unless a) you get 1 that is cheap from a junkyard or b) you want over 700hp. Just pick whatever is the best deal. Don't bother boring it out or anything. Boost is the great equalizer. You want more power, turn up the boost. Don't over complicate it.

rpturbo

iTrader: (47)

YEP, you can even use the el-cheapo 4.8 and just roll on the boost!