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Which cylinder head bolts for 5.0 hybrid 16V engine

 
Old 05-01-2013, 09:24 AM
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Default Which cylinder head bolts for 5.0 hybrid 16V engine

Hello,

which cylinder head bolts do I have to use for a 16V 5.0 hybrid engine based on an S4 block ?
The stock bolts 4.7 or the longer/shorter screws fron the S4 cylinder heads ?

Ahh btw another question :
How to fix best the CIS air flow meter into the V of the S4 block ?
The according fixing mounts from the stock 4.7 block are missing at the S4 block .


Regards
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Old 05-01-2013, 10:24 AM
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What S4 heads you have, early or late? If early you can use either, if new you can only use bolts.
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Old 05-01-2013, 10:33 AM
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Originally Posted by [email protected] View Post
which cylinder head bolts do I have to use for a 16V 5.0 hybrid engine based on an S4 block ?
You want to use the fasteners that were used with the heads and not the block. This means studs and nuts for the 4.7l 2-valve heads, if I'm following your build right. Studs are better than bolts as you're not wearing the threads in the block on assembly/disassembly and the torque applied is better controlled..
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Old 05-01-2013, 11:38 AM
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Ding ding ding, Glen has the correct answer!
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Old 05-01-2013, 11:45 AM
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That's what I used
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Old 05-01-2013, 12:06 PM
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Hello,

thx for your answers .
To clarify a little bit : I mean I'm building a S4 hybrid engine with CIS and '81 2 valve heads from an Euro "S"

So i should keep the stock bolts and nuts used in the 4.7 block ?
Of course I'll buy new ones...i won't use again the 30yr old fasteners .
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Old 05-01-2013, 12:45 PM
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the block i used, a 5L from an 86 (if i remember right) had studs. i just left them in and used the euro heads. my euro heads (and intake etc) came off an 86 euro LH, and im pretty sure it had studs.....
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Old 05-01-2013, 01:08 PM
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Ok thx

Any ideas how to fix the CIS mass air flow meter to the S4 block?
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