I'm starting to plan upgrading my fuel system and I just saw on SD's website 2 styles of LT4 injectors. Part # 12703611 is called nominal flow. Part # 12703612 is called high flow. About a $1.50 difference in price ea. Any input?

 

In for info also

 

It seems GM changed stuff up after 2014 on the ZO6. Here is a pretty good read about it. Just get the high flow. I found this thread when I was looking for injectors on my L86. When I did my heads and cam I couldn't talk the wife into dropping another 700$ for LT4 injectors.




https://www.corvetteforum.com/forums...jectors-3.html

 

12668655 high flow injectors pn. Cheapest I've found is 506$ out the door.

 

Hate to bump this old of a thread but did these part numbers get changed. Also seeing some vendors claim there is no difference in the nominal and high flow injectors???

 

Bunch of #'s. Just get all 8 same ones and I understand you're good. Mine are 12668397 but I don't think there is a difference iirc.