Can anyone provide a source for replacement Gil riser gaskets? I bought a set, and when I separated the riser from the manifold, there was a metal plate with a cone and a square fiber gasket. The fiber gasket cracked. I suppose I might be able to use some high temp RTV in the joint, since it is a dry joint, but I thought I would see if I can just get a new gasket.

BTW, a buddy of mine has an HP500 with the Gils, and he said his have no riser gasket - just the metal plate. Is the gasket even needed?

Thanks!

Contact Hardin Marine. You need two sets, one one either side of the turbulator ( the metal plate you were asking about)

Hmmm strange - when I took these apart, there was only one on top of the turbulator.

Like I mentioned, my friend's HP 500 only had the turbulator - no gaskets. That is the way he has always run it. Go figure.

+1. There should be gaskets both sides.

You need two gaskets per side, four total for one engine. One on each side of the turbolator as already stated.

http://www.cpperformance.com/p-12821...ock-chevy.aspx