LS1 Vacuum/Boost Billet Aluminum Distribution Block w/ Holley Hi-Ram Bracket
This billet aluminum vacuum/boost reference billet distribution block is made to simplify and clean up plumbing lines for boost and vacuum purposes on your boosted LS engine. The design allows the block to be mounted off the upper two most holes on LS1 cylinder heads front or rear as well as on a firewall, or anywhere else.
This manifold is CNC machined from 6061 aluminum and features 8 separate 1/8" NPT ports and 2 1/4" NPT giving you many different options for line routing and enough spaces for all of your boost reference signals. This works great for plumbing to your boost reference fuel pressure regulator, manifold pressure wastegates, blow off valve, map sensor, boost controller sensor and many other items.
This kit comes with vacuum manifold block, 5 port plugs, Holley Hi Ram bracketry, intake bolt stainless hardware, and manifold to bracket stainless hardware. This manifold could also be a great distribution block for C02 or water.
***We do not suggest running the bottom wastegate fitting to this manifold, especially if running a map sensor or boost controller signal on the block as it may drain pressure and cause a faulty signal/reading.***