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Ls2 injector questions

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Old Jun 19, 2019 | 12:24 PM
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Default Ls2 injector questions

Hey guys I’m in the middle of swapping a fast 102 trickflow 220 heads And a g6x3 cam into my ls2 I’m wondering if I’m going to need to change injectors or will the stock ls2 injectors be fine? I’m looking to put down 500rwhp and dont want to find out after it’s put together and ready to be tuned that my injectors won’t be enough

Last edited by tyler318; Jun 19, 2019 at 12:25 PM.
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Old Jun 19, 2019 | 03:32 PM
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Find you some LS3/LS7 injectors. I think your stock LS2's will be done before you reach 500. LS2's are 33#ers vs 42 for the LS3/7 versions. They're inexpensive and show up quite often in the C6 classified section. Even new, they aren't that bad. I think you'll need adaptors to make them work. Your tuner shouldn't have any problem with them either.
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Old Jun 19, 2019 | 03:53 PM
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Originally Posted by old motorhead
Find you some LS3/LS7 injectors. I think your stock LS2's will be done before you reach 500. LS2's are 33#ers vs 42 for the LS3/7 versions. They're inexpensive and show up quite often in the C6 classified section. Even new, they aren't that bad. I think you'll need adaptors to make them work. Your tuner shouldn't have any problem with them either.

Thats the exact route route I am going to go I ordered the adapters just searching for a set of injectors their pretty plentiful just trying to find a set close that I can pick up
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Old Jun 19, 2019 | 04:21 PM
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I have a nice barely used set of 60lb that I would let go of cheap.. I used them with my fast102/tfs heads/cam on my LS2. Let me know!
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Old Jun 20, 2019 | 08:25 AM
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Originally Posted by old motorhead
Find you some LS3/LS7 injectors. I think your stock LS2's will be done before you reach 500. LS2's are 33#ers vs 42 for the LS3/7 versions. They're inexpensive and show up quite often in the C6 classified section. Even new, they aren't that bad. I think you'll need adaptors to make them work. Your tuner shouldn't have any problem with them either.
LS2's would be fine, BUT you would be running them over the 80% duty cycle you would really be looking far a matched set of 36 # which are LS7 size injectors are matched at like? 40PSI but our fuel systems run at 55PSI hence the 42LB rating
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