Which is a better motor for swap
Jan 22, 2004 | 01:47 PM
#3
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Joined: Dec 2003
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From: oklahoma
the ls1 is lighter but the 6.0 is cheaper to make faster. the ls1 you have to worry about blowing it up, or spending a butt load to resleeve. I think I am going to build an engine for my truck. trust me I am going with the 6.0 and stroke and bore the hell out of it. 408 or 421. Probably do all forged internals and then throw a turbo, supercharger, nitrous. You know price wise you can build a 6.0 to produce more horsepwoer and be more reliable. thats the way i would go.
Jan 22, 2004 | 03:01 PM
#5
Depending on how far your taking it. I would say that most people can make plenty of power on a stock 346 block to be happy. Plus, you'll save quite a bit of weight. Just a cam and rebuild with GOOD parts, and my LS1 is running 9.09@80 in the 1/8th on the stock 4.8 tune! 
If you're going all out, or building a boost motor, get the 6.0.
If you're going all out, or building a boost motor, get the 6.0.
Jan 22, 2004 | 06:31 PM
#6
Scream, do you have any pics of you LS1 in your truck? I'd love to see how it looks! Do you have any vids of sound clips. I bet it really does "scream!" 
Originally Posted by Scream
Depending on how far your taking it. I would say that most people can make plenty of power on a stock 346 block to be happy. Plus, you'll save quite a bit of weight. Just a cam and rebuild with GOOD parts, and my LS1 is running 9.09@80 in the 1/8th on the stock 4.8 tune!
If you're going all out, or building a boost motor, get the 6.0.
If you're going all out, or building a boost motor, get the 6.0.
Jan 23, 2004 | 06:41 AM
#7
Originally Posted by gmc5.3L
Scream, do you have any pics of you LS1 in your truck? I'd love to see how it looks! Do you have any vids of sound clips. I bet it really does "scream!"
And, no vid or sound clips, but I am taking it to Gainesville tomorrow--WITH SOME TUNING!!!! I'm hoping to break into the 13s.
::crosses fingers::
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Jan 23, 2004 | 07:21 AM
#8
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Joined: Aug 2003
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From: Wayne Mi
Originally Posted by Scream
Pop your hood and take a look. That's EXACTLY what my motor looks like.
And, no vid or sound clips, but I am taking it to Gainesville tomorrow--WITH SOME TUNING!!!! I'm hoping to break into the 13s.
::crosses fingers::
And, no vid or sound clips, but I am taking it to Gainesville tomorrow--WITH SOME TUNING!!!! I'm hoping to break into the 13s.
::crosses fingers::
I rulled out my 5.3 and put a 5.7 ls1 motor in mine back in october and I love it. it you want let me know I'll get you some pics.
Jan 23, 2004 | 01:28 PM
#9
2003blue5.7, pics would be great. Thanks
Originally Posted by 2003blue5.7
I rulled out my 5.3 and put a 5.7 ls1 motor in mine back in october and I love it. it you want let me know I'll get you some pics.
Jan 23, 2004 | 02:32 PM
#10
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Joined: Apr 2003
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From: Albuquerque, NM
I have been experimenting with a 5.3 block. I just had it bored out to the 5.7 slug size ( 3.898" vs 3.78" ) as the crank and rods are identical. The bored block sonic checked good, thinnest wall was 0.250" ( 0.150" is minimum you want ).
Granted, this may be the long way around things. I will start assembling the iron block LS1 soon and will update the end result, hopefully good.
FYI, my total so far for machine work and used 5.3 long block is $700. I hope in the end the expense will be minimal compared to a 6.0 or LS1/LS6 motor. More to come.
Granted, this may be the long way around things. I will start assembling the iron block LS1 soon and will update the end result, hopefully good.
FYI, my total so far for machine work and used 5.3 long block is $700. I hope in the end the expense will be minimal compared to a 6.0 or LS1/LS6 motor. More to come.