INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

5.3 to 6.2 block Switch?

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Old 05-19-2009, 01:08 PM
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Default 5.3 to 6.2 block Switch?

is this possible? or is the biggest switch from 5.3 is to 6.0?
Old 05-19-2009, 01:17 PM
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it can be done but your going to have to get a new computer due to the crankshaft reluctor wheel
Old 05-19-2009, 01:48 PM
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and if i switch to a 6.0 will i need to get a new computer?
Old 05-19-2009, 02:47 PM
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That conversion would be easy the 08 avalanche is already a 58x on the reluctor wheel give the details on what all you are trying to do and will tell you what you need....
Old 05-19-2009, 03:03 PM
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u can do it if u swap to new engines with 58x reluctor

if swap is to l92 or ly6 u will need the computer to control the vvt (not sure if u can load the vvt program on ur ecu)
the other newer engines (ls2, ls7, l76) will fit but the accessories are different sometimes

hope the guys will help u more

whats the numbers on ur setup?
Old 05-19-2009, 03:33 PM
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my avalanche is doing pretty good now i dynoed it last week...397.5 hp 420tq...but im looking to swap my engine block..

Last edited by Basool; 05-19-2009 at 03:40 PM.
Old 05-19-2009, 03:36 PM
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Originally Posted by NEGEN@SDPC
That conversion would be easy the 08 avalanche is already a 58x on the reluctor wheel give the details on what all you are trying to do and will tell you what you need....
im looking forward to switch to a 6.0 or 6.2 block...im just thinking over what do i need to put it all together and start..
Old 05-19-2009, 03:51 PM
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it didnt come to my mind that u want block only lol

for the stock heads or stage 2.5 am pretty sure they wont fit on 6.2
also the 6.0 come with the l92 heads style with smaller valves i think

for stage 2.5 i think the 6.0 (4.00 bore ) is the max size u can fit them on

u can call texas speed and ask them
Old 05-20-2009, 10:35 AM
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Originally Posted by Ad1
it didnt come to my mind that u want block only lol

for the stock heads or stage 2.5 am pretty sure they wont fit on 6.2
also the 6.0 come with the l92 heads style with smaller valves i think

for stage 2.5 i think the 6.0 (4.00 bore ) is the max size u can fit them on

u can call texas speed and ask them
thanx man..im probably gonna stay with my 5.3 until i get bored from it...
Old 05-20-2009, 07:39 PM
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Originally Posted by NEGEN@SDPC
That conversion would be easy the 08 avalanche is already a 58x on the reluctor wheel give the details on what all you are trying to do and will tell you what you need....
True I didn't look at the vehicle, I just assumed it was an earlier model,


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