LS1/ LS6 Vacuum Fitting

This is a repair fitting for the back of the LS1 or LS6 intake manifold. The factory one snaps in but this one is designed to be glued in. It fit snug in my LS6 Manifold. I printed it in PA6CF. The map sensor hole is snug but mine fit with no issue. If it is too tight it may just need cleaned up slightly with a drill bit. I have also included a second plate with a PROTOTYPE model with a thick section where the smaller nipple goes. It is big enough to drill and tap to 1/8npt to use a brass fitting but be warned. I have tried it and had some split at the layer lines so I just used the fully printed model. Again, this is a prototype and is included in case someone wants to experiment with it.