LLY and LBZ/LMM injectors

bobxr50

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Mar 3, 2008
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Just wanted to confirm info. You can run LBZ LMM injectors in a LLY? Older info in the past states that you cannot. Just wanted to clear it up either way.
 

Bdsankey

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Feb 1, 2018
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Just wanted to confirm info. You can run LBZ LMM injectors in a LLY? Older info in the past states that you cannot. Just wanted to clear it up either way.

Opposite. The LLY injector body is straight whereas the 06-10 has a slight taper causing the LBZ/LMM injector to not seat properly in the LLY head.
 

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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If you have a friend with a lathe, .015 off the Lbz/LMM body of the injector resolves this issue.
 

bobxr50

Been around
Mar 3, 2008
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mn
Totally understand about the sizing issue. I was wondering about the ECM/FICM. No performance loss with the LBZ injectors vs LLY
 

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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It may take some tuning work to make it run/sound smooth as lly Fire off 48v and lbz Fire off 24v from what i remember. Couldn’t answer longevity. They will run and work though