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Hang muffler off heads?
Posted by: mattlockwood ()
Date: January 18, 2021 09:45AM

On the rear face of the heads there is a 3/16th bolt holding a shroud to the head. Can I attach my steel strap to this? The steel strap is my muffler hanger . 1970 vw bus.

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1970 VW Bus- converted to a 110hp w/a PG. Now with electronic ignition!
Kansas City, Mo

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Re: Hang muffler off heads?
Posted by: MattNall ()
Date: January 18, 2021 09:58AM

That's how the factory did it!

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Re: Hang muffler off heads?
Posted by: Wagon Master ()
Date: January 18, 2021 09:59AM

3/16" no
3/8" yes
There should be 2 of them on the right rear of the head. For that purpose.
Are you using early or late style sheet metal?

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Re: Hang muffler off heads?
Posted by: TerribleTed ()
Date: January 18, 2021 10:00AM

3/16? Not aware of any 3/16" bolt. there are 3/8x16 bolts used on the right rear of the head to hold shrouding and also held the original muffler hanger. These would certainly be adequate if done properly. here is a link to clark's catalog page 36 there is a muffler hanger pictured in the lower middle of the page. The normal one is the one with the rubber square in it. [ssl.corvair.com]

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Re: Hang muffler off heads?
Posted by: mattlockwood ()
Date: January 18, 2021 10:05AM

3/8, my mistake. Thank you.

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1970 VW Bus- converted to a 110hp w/a PG. Now with electronic ignition!
Kansas City, Mo

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Re: Hang muffler off heads?
Posted by: Lane66m ()
Date: January 18, 2021 10:17AM

The GM exhaust mount bracket on the right head hangs off the 3/8" bolt and 3/8" coil stud and the shroud mount hole above it using a 1/4 or 5/16" bolt.

I would think you would need to duplicate it to keep fore & aft movement and vertical movement restricted, whether it is on either head. Left head aft end will use 5/16" bolts. Exhaust mount bracket used a 3 piece metal and rubber isolator system to attach muffler.

Al
Georgia

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