470 heat exchanger help please

[Fishmaster13184]

I'm getting my boat ready for the year and somehow I misplaced the heat exchanger end gasket and bolt to hold it in. All I located was the end cap. Does anyone know the bolt diameter and length and also the outside diameter of the end cap gasket? Thanks a bunch I'm hoping to get her fired up tonight

 

[Scott Danforth]

gasket is same diameter as outside hx shell.

pull the other end cap, use the gasket as a template (or buy one - they are cheap). and you have your answer on the bolt

 

[Fishmaster13184]

I'm about 20 miles from a hardware store and was hoping to get actual bolt measurements so I could stop on my way home from work, the gasket I'm not too concerned about because I can just make one

 

[Fishmaster13184]

In case anyone ever wonders it's a 7/16 3/4" bolt for the cap and I made a new gasket