O-rings will be used a lot on this manifold. Not big O-rings. They will be 1/16" diameter.Are those injector pads on the outside? Why are two narrower than the other four?
O-Ring the ports? http://www.popularhotrodding.com/en...igblockshootout/0305em_turbo_bb/photo_03.html![]()
The outside injector pads are wider because a bolt will be threaded into the side of the pad to fasten the fuel rail retaining brackets.