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Jim Johnston/6022 · 07-19-2012, 01:18 PM

If you look up MRG-5780 on summit it goes to MRG-5780G, the only difference i can see is the G has one gasket the other two, still half the price of a cometic.

Back to the 265, the gasket we have used for years and of course is no longer available is detroit gasket 55061hg for a 305 application.
Detroit sold to corteco (not to be confused with cometic) Corteco seems to have gone broke and or disappeared

07-19-2012, 01:18 PM	#9
Jim Johnston/6022 Junior Member Join Date: Oct 2011 Location: delta bc-down river from mission raceway Posts: 37 Likes: 0 Liked 13 Times in 6 Posts	Re: Head gasket ? If you look up MRG-5780 on summit it goes to MRG-5780G, the only difference i can see is the G has one gasket the other two, still half the price of a cometic. Back to the 265, the gasket we have used for years and of course is no longer available is detroit gasket 55061hg for a 305 application. Detroit sold to corteco (not to be confused with cometic) Corteco seems to have gone broke and or disappeared