What I see is that the distance from the side of the flange that bolts to the cylinder head to the inside of the manifold is 1/2 inch in closer on the new exhaust. What I am wondering is if this is still going to work, or if its too close and will hit the valve cover. Its going on a 1998 Monsoon, and the manifold part number is 18-1997 Sierra.
The picture below should show what I mean. The blue line is the distance on the manifolds that are on the boat now.
Edited by zone 5, November 25, 2012 - 06:28 PM.