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06-19-2013, 06:53 PM
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#1 |
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Registered User
Join Date: Oct 2012
Location: Lebanon Ohio
Posts: 188
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Exhaust manifold bolts
Can someone tell me the correct bolts needed for the ram horn style exhaust manifolds?
Posted via Mobile Device
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1971 Chevrolet C10 Inflation Fighter  1994 C3500 Crew Cab Dually 454
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06-20-2013, 03:32 AM
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#2 |
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Registered User
Join Date: Oct 2012
Location: Seattle, WA
Posts: 88
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Re: Exhaust manifold bolts
Gah! I just dealt with this last week. I needed 3/8x16 bolts in 2.25" and 2.75" lengths. Since those are such oddball lengths I just got 3 inch and 2.5 inch bolts with thick washers to accommodate the quarter inch difference in length so I can tighten them into the head without damaging it.
I believe I needed 8 of the shorter bolts and 4 of the longer ones. I do hope this helps, but I was searching for the same information on here for an hour and wasn't able to get a definite answer. This was the best I could find. Posted via Mobile Device |
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06-20-2013, 06:47 AM
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#3 |
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Registered User
Join Date: Oct 2012
Location: Lebanon Ohio
Posts: 188
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Re: Exhaust manifold bolts
Awesome!
The previous owner used different bolts and a lot of washers to make up the difference. Thanks!!!!! Posted via Mobile Device
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1971 Chevrolet C10 Inflation Fighter 1994 C3500 Crew Cab Dually 454
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06-20-2013, 11:41 AM
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#4 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: Exhaust manifold bolts
I bought a bunch on 2 1/2s and cut them off to 2 1/4s with a band saw. worked great
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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06-20-2013, 12:49 PM
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#5 |
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Registered User
Join Date: May 2013
Location: Central NC
Posts: 830
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Re: Exhaust manifold bolts
I went to a store named "Automotive Fasteners" just last week, they had the exact bolts I needed for mine, dont know if they are a national chain but you shoukd have something similar near you.
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06-20-2013, 06:55 PM
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#7 |
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Registered User
Join Date: Jun 2010
Location: Parkville, MD
Posts: 163
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Re: Exhaust manifold bolts
I believe if you have factory A/C you'll need different bolts because the A/C bracket bolts to the manifold. I got my set from Classic Industries, but lots of vendors have them.
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