Looking for exhaust gaskets

[namba276]

Guys, I need some help here... I bought a cmb LS21 green head on ebay a while back. It came with an exhaust gasket that looks like the rossi pink ones and OS black ones. There is one main difference, Unlike the os rzm, the cmb has a smooth manifold with no ridge. I need the black " top hat" that is smooth inside. I got one from a friend at a local race and was told it was from Andy. called Andy and was sent to Tidewater. Tidewater sent me an ordinary Oring.. I thought I explained it well enough. Any help would be appreciated.

Bob Tuttle

 

[Terry Flynn]

Guys, I need some help here... I bought a cmb LS21 green head on ebay a while back. It came with an exhaust gasket that looks like the rossi pink ones and OS black ones. There is one main difference, Unlike the os rzm, the cmb has a smooth manifold with no ridge. I need the black " top hat" that is smooth inside. I got one from a friend at a local race and was told it was from Andy. called Andy and was sent to Tidewater. Tidewater sent me an ordinary Oring.. I thought I explained it well enough. Any help would be appreciated.

Bob Tuttle

The CMB should take the same Gasket as the Mac. and I don't thinks it's the top hat style. I know that my Nova rossi takes the top hat style and it will not fit my Mac.

 

[Mike Larson]

Hey Bob! Everyone can correct me if Im wrong..... I think youre runnin a nova header on your cmb........... theyll interchange, i guess,.... I have two GH longstrokes and they both run the silicone cut off for the exhaust....... novas run the top hat, Mcgraw will have the gasket you need, but, Ive found that the cmb gasket holds up better and provides a better seal IMO, switch headers if youre picky, run the nova gasket if ya aint.... good luck, mike