Truck Engine 5.3L

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Feb 28, 2004 | 12:46 PM
  #1  
Can someone give me some information on this engine? Like Bore stroke? I want to swap this engine in because i see them all the time and for cheap to.

This is a Chevy engine, and so from what i hear it there wont be a problem to "bolt it on" or is there?
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Feb 28, 2004 | 01:37 PM
  #2  
I would also like to know any interesting things about the 5300. My parents just bought a 2004 Avalanche with the 5300. Nice engine, very clean powerful design.
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Feb 28, 2004 | 02:35 PM
  #3  
Yea thats what i was thinking
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Feb 28, 2004 | 03:50 PM
  #4  
hopefully this link may help with some engine specs

GM 5300
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Feb 28, 2004 | 04:33 PM
  #5  
thanks that looks good, maybe having it bored out and stroked it will make it worth not getting the LT1.
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Feb 28, 2004 | 04:38 PM
  #6  
Its a sibling to the LS1, I have one of the 4.8 sitting here, the block is the same between the 4.8 and 5.3, stroke on the 4.8 is 3.27 and the stroke on the 5.3 is the same as the LS1's at 3.62
they are an iron block, alum head setup, im still not sure if the manifold will clear a stock hood or not, and you can bolt the f body T56 to em, pretty much use the same mount & crossmember package thirdgenresource sells for the LS1, though you'd probably end up being better off later if you swapped the longblock for a LS1 block or a 6.0 rather than playing with the stock block and its small bore.
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Feb 28, 2004 | 04:42 PM
  #7  
Quote:
Originally posted by Z28*****
Its a sibling to the LS1, I have one of the 4.8 sitting here, the block is the same between the 4.8 and 5.3, stroke on the 4.8 is 3.27 and the stroke on the 5.3 is the same as the LS1's at 3.62
they are an iron block, alum head setup, im still not sure if the manifold will clear a stock hood or not, and you can bolt the f body T56 to em, pretty much use the same mount & crossmember package thirdgenresource sells for the LS1, though you'd probably end up being better off later if you swapped the longblock for a LS1 block or a 6.0 rather than playing with the stock block and its small bore.
I havent really seen 6.0 around the bone yard but plenty of 5.3. Yea the 3.78in bore sucks, isnt that the same as the 5.0?. I have seen one for $750 for a complete engine, which isnt bad at all.
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Feb 28, 2004 | 04:47 PM
  #8  
Quote:
Originally posted by D M N
I havent really seen 6.0 around the bone yard but plenty of 5.3. Yea the 3.78in bore sucks, isnt that the same as the 5.0?. I have seen one for $750 for a complete engine, which isnt bad at all.
Yes its around the same bore as the 5.0's and the main reason why people wanting to go fast with a 305 because its different, are stupid.

You can do the swap now with the 5.3 and then later get a new or used 6.0 or LS1 block and build on it or just drop in, I believe new 6.0 blocks are selling for round 600 bux, and prices on used ones will continue to drop as GM pours more and more of them onto the streets
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Feb 28, 2004 | 04:48 PM
  #9  
Quote:
Originally posted by Z28*****
Yes its around the same bore as the 5.0's and the main reason why people wanting to go fast with a 305 because its different, are stupid.

You can do the swap now with the 5.3 and then later get a new or used 6.0 or LS1 block and build on it or just drop in, I believe new 6.0 blocks are selling for round 600 bux, and prices on used ones will continue to drop as GM pours more and more of them onto the streets
yea thats why the 5.3 is cheap.

P.S. the 6.0 has a smaller bore (4in) then the 5.7.
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Feb 28, 2004 | 04:54 PM
  #10  
Quote:
Originally posted by D M N
yea thats why the 5.3 is cheap. Will does head fit the l98?

P.S. the 6.0 has a smaller bore (4in) then the 5.7.
No the heads will not fit an L98 I told you its a sibling of the LS1 / LS6, parts will only interchange for the most part with the 4.8 / 5.3 / 6.0 and LS1 / LS6

And dont go posting misinformation, the 6.0 has a larger bore than the 5.7, the 5.7 LS1 has a 3.90 bore, they both share the same stroke, the 6.0 gets its added cubes from the extra bore, and the 6.0 has the same bore as a normal L98 5.7 if thats what you were referring to.
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Feb 28, 2004 | 04:57 PM
  #11  
Quote:
Originally posted by Z28*****
No the heads will not fit an L98 I told you its a sibling of the LS1 / LS6, parts will only interchange for the most part with the 4.8 / 5.3 / 6.0 and LS1 / LS6

And dont go posting misinformation, the 6.0 has a larger bore than the 5.7, the 5.7 LS1 has a 3.90 bore, they both share the same stroke, the 6.0 gets its added cubes from the extra bore, and the 6.0 has the same stroke as a normal L98 5.7 if thats what you were referring to.
Ok but the bore on a 6.0 is 101.60mm (4in) i got it off the GM website
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Feb 28, 2004 | 05:48 PM
  #12  
Quote:
Originally posted by D M N
Ok but the bore on a 6.0 is 101.60mm (4in) i got it off the GM website
Thats exactly what I said, so wtf is your point ?

You said the 6.0 has a smaller bore than a 5.7, yet a LS1 5.7 is 3.90 bore, the earlier L98's and other 350's are a 4" bore, either way you look at it, you're wrong.
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Feb 28, 2004 | 05:50 PM
  #13  
Oh i was mistaken i appolagize. Yes the 350 do have a 4in bore and 3.48 stroke.
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