Fastbird93

iTrader: (10)

Here's the skinny. Using a 97-98 Fuel Rail, Mamo Ported LS2 Manifold, Bosch 95lb Injectors w/extenders on injector to bring them to LS1 spec length (car previously had aftermarket rails and a FAST 102). I don't need critiquing on the new setup, it's what I am using, so please look past that. What I am wondering is, rather than trying to either tweak the early LS1 rail to fit the LS2 manifold......I need about 8mm of height. Can I use a second short extension (around 12mm) to bring the rails up for clearance? I'd essentially have two different sized injector hat extensions piggybacked. Not sure if that's asking for trouble or not, hence my asking here.

G Atsma

Not familiar with extenders. I would think it would be OK if there was no issue with leakage, or becoming a little rickety because of 2 extenders being stacked. Those would be the issues if any as far as I can tell

Fastbird93

iTrader: (10)

Essentially I'd be using a short and a long adapter (available all over the place due to injector changes over the years) together to give a little extended height over the typical LS1 injector height.

stevieturbo

You can buy them in various lengths.

Just buy what you need.

Fastbird93

iTrader: (10)

Thank you, I actually just did that, with minor reservations. The 97-98 Vette rail has a very small pinhole of an opening in the hat that's offset, and my concern was bottoming out a taller adapter and choking the fuel flow, since none of the longer ones seem to have a shoulder. But I'm hoping to compensate for that with a slightly oversized standoff since I'll have to make those anyway to mount the rail.