Go with 8.1 marine injectors since they are direct plug-in and no big changes need to the tune just IFR.

If you need anything bigger you can go to these: https://www.performancetrucks.net/fo...d.php?t=416134

They don't require any big tuning changes either and they are Plug n' Play.

 

i was thinking about using the 8.1 but i'm aleady at 110% cycle duty with stock 5.3 injectors, so i didnt think those were gonna be enough.

Can't find any 8.1s around here, so i was thinkin of trying LQ4 injectors since i know someone thats has some, supposedly they are 30lb?

 

The 8.1 truck injectors are about 30lbs at 58 PSI the 8.1 Marine are about 43lbs at 58 PSI and the 4.8, 5.3 and 6.0(ie. LQ4/LQ9) are all the same which is about 25lbs at 58 PSI.

Usually there are a few Marine injectors in the for sale section but maybe you might have to wait a little unless you go with the 60's(72@58 PSI).

 

ford green tops?.......... bc i doubt some marine 8.1s are gonna show up on the classifiedsin the next month

what the lengthh on the ford green tops?