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[GMCnet] Exhaust manifold flange spring bolts length? [message #344351]

Wed, 19 June 2019 12:56

Dave Stragand

Messages: 307
Registered: October 2017

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Senior Member

Hi All,

On a stock 1978 with a 403, how long should the exhaust manifold flange spring bolts be? I had pulled up that they are 3/8-16 x 1 3/4. I had several of those as "HELP" brand so I put them in on one side, and the spring is near completely compressed. Should there be more 'play' in the spring, such as by using a 2" or 2 1/2" bolt? Or should the spring be near completely compressed?

Thanks,

-Dave
1978 Transmode near Pittsburgh
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1978 Transmode (403) Pittsburgh, PA

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[Message index]

		[GMCnet] Exhaust manifold flange spring bolts length? By: Dave Stragand on Wed, 19 June 2019 12:56
		Re: [GMCnet] Exhaust manifold flange spring bolts length? By: JohnL455 on Wed, 19 June 2019 13:43
		Re: [GMCnet] Exhaust manifold flange spring bolts length? By: lqqkatjon on Wed, 19 June 2019 15:13

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