Fast rails and intake
11-27-2017, 06:24 PM
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Fast rails and intake HI guys, has anyone used a cathedral port lsxr 102 with ls3 injectors. I have ls1 style fast rails and I'm getting ls3 oe injectors. The top diameter of the ls3 injectors is the same as ls1 and ls2 Ive read. I'm trying to figure if I buy the ls3 brackets from fast and injector adapters I can use my existing rails. Has antineoplastic done this or have any knowledge of this. I searched and couldn't find anything. Thank you for your help in advance.
11-28-2017, 09:02 AM
#2
I don't know all of this, but the stock LS1 and I think LS2 have same size both top/bottom. The LS3 intake has larger bottom, so we swap the o-rings to go in the LS3 intake. However, we don't use stock injectors so I can't be sure the FAST o-ring we use is the one you need. You will need a larger one and someone will know which one.