LS2 to LS3 Head swap
08-15-2016, 02:23 PM
#1
Heel & Toe
Thread Starter
LS2 to LS3 Head swap
Hello,
I was hoping if anyone here has done a LS2 to LS3 head swap. Is this mod a true bolt on ? Are there any particular issues that arise when doing the swap ? Do you recommend ported heads , over the stock LS3 heads ?
I'm thinking of doing the head swap + FAST intake . If anyone here did a similar modification to their 2007 c6, your help , guidance, and tips are much appreciated.
THank you !!!!
I was hoping if anyone here has done a LS2 to LS3 head swap. Is this mod a true bolt on ? Are there any particular issues that arise when doing the swap ? Do you recommend ported heads , over the stock LS3 heads ?
I'm thinking of doing the head swap + FAST intake . If anyone here did a similar modification to their 2007 c6, your help , guidance, and tips are much appreciated.
THank you !!!!
Been thinking about doing the exact same thing.
08-15-2016, 09:16 PM
#4
Race Director
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C6 of Year Finalist (performance mods) 2019
Since a ported LS3 IM is nearly comparable to a FAST, that's a lower cost alternative to consider.
08-15-2016, 10:39 PM
#6
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C6 of Year Finalist (performance mods) 2019
08-16-2016, 03:01 PM
#7
Heel & Toe
Thread Starter
Ok cool. Did you change the CAM yourself ? or had a shop do it ? I'm sure there is timing, spring and valve calibration involved, or is that handled through the ECM via tunning and reprogramming?
08-16-2016, 09:12 PM
#9
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St. Jude Donor '15
Timing / tune changes.. yes
08-17-2016, 09:03 AM
#10
Advanced
I performed this swap a few years ago. Swap was pretty straight forward, Don't forget to get new head bolts and you will need 11mm x 2.0 and 8mm x 1.25 clean out taps to clean the bolt holes in the block.
08-22-2016, 01:24 AM
#14
7th Gear
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Man I have a set of 821 heads and I have the ls3 intake and a btr stage 2 ls3 cam kit ready to install. But I haven't done it because. I'm not sure if it's the route I want to go I've been doing research and they say there is valve shrouding. And having to fly cut pistons so I'm second guessing myself.
08-22-2016, 06:57 AM
#15
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NCM Sinkhole Donor
Man I have a set of 821 heads and I have the ls3 intake and a btr stage 2 ls3 cam kit ready to install. But I haven't done it because. I'm not sure if it's the route I want to go I've been doing research and they say there is valve shrouding. And having to fly cut pistons so I'm second guessing myself.
http://www.compcams.com/Company/CC/c...csid=1411&sb=0
Last edited by timd38; 08-22-2016 at 05:23 PM.
08-22-2016, 05:19 PM
#16
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