Just wondering do all SB chevy engines (283, 327,350) have the same exhaust manifold bolts. They seem to have the same head markings--are they the same length and diameter?
Exhaust Manifold Bolts--Do All SB have the Same Ones?
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
Paul------
For 1956-1979, basically yes. All exhaust manifold bolts for small blocks (and big blocks, too) were 3/8-16. Most small blocks use bolts 2-1/4" long at the end runners and 2-27/32" at the two center holes on each side. However, there are some differences with respect to special bolts or studs used for certain positions depending on other installed items.
1980-82 with tubular manifolds use different bolts.In Appreciation of John Hinckley- Top
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
The reason I'm asking these questions is a friend on mine who was helping me removed the exhaust manifold bolts from my LT-1 motor when I wasn't present and threw them all in a bag--so I don't know which ones go where and which ones had a bracket to hold the chrome shielding. Correct me if I'm wrong: there are 10 bolts-- 8 short ones 2 1/4 long and 2 long ones 2 27/32 in long. They all have washers and there are 4 french locks on the two front and two rear bolts on each side.
Are there any side ignition shield supports on the exhaust manifold bolts?- Top
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
The reason I'm asking these questions is a friend on mine who was helping me removed the exhaust manifold bolts from my LT-1 motor when I wasn't present and threw them all in a bag--so I don't know which ones go where and which ones had a bracket to hold the chrome shielding. Correct me if I'm wrong: there are 10 bolts-- 8 short ones 2 1/4 long and 2 long ones 2 27/32 in long. They all have washers and there are 4 french locks on the two front and two rear bolts on each side.
Are there any side ignition shield supports on the exhaust manifold bolts?
Paul------
There are a total of 12 bolts. 8 of 2-1/4" and 4 of 2-27/32.
French locks are as you describe.
If you're talking about the side RF shields, all of the brackets mount to the exhaust manifold boltsIn Appreciation of John Hinckley- Top
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
The reason I'm asking these questions is a friend on mine who was helping me removed the exhaust manifold bolts from my LT-1 motor when I wasn't present and threw them all in a bag--so I don't know which ones go where and which ones had a bracket to hold the chrome shielding. Correct me if I'm wrong: there are 10 bolts-- 8 short ones 2 1/4 long and 2 long ones 2 27/32 in long. They all have washers and there are 4 french locks on the two front and two rear bolts on each side.
[B]Are there any side ignition shield supports on the exhaust manifold bolts?[B/}Terry- Top
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
And don't forget the round washers. They are small in outside diameter like a lock washer without the split. I believe they go under the french locks.- Top
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Re: Exhaust Manifold Bolts--Do All SB have the Same Ones?
Yup. The order of assembly is bolt/french lock/washer/manifold. For the ones with shielding brackets, the bracket goes between the washer and the manifold.- Top
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