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Evo X General Discuss any generalized technical Evo X related topics that may not fit into the other forums.

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Old Nov 19, 2008, 09:16 PM   #1
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When Do you need to change your head bolts

I heard that at over 25lbs you should change your head bolts.... Is this true
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Old Nov 19, 2008, 09:19 PM   #2
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ARP Studs.
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Old Nov 20, 2008, 08:29 AM   #3
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Old Nov 20, 2008, 03:57 PM   #4
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Quote:
Originally Posted by evojanoy View Post
I heard that at over 25lbs you should change your head bolts.... Is this true
mmm not sure, but i doubt it, the stock turbo gets pretty close to that. I think is 30, but not sure 4B11 is a different motor.

P.S. The B18 ones suppose fit the 4B11.
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Old Nov 20, 2008, 08:46 PM   #5
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Thanks I'll look that up... So I should be safe at 25lbs with the stock bolts
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Old Nov 20, 2008, 09:24 PM   #6
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Thanks I'll look that up... So I should be safe at 25lbs with the stock bolts
I think you should, i believe the stock turbo like i said pushes close to 25 if not that.

And i read about the ARP studs from B18 from a post carrito.net made. You might want to PM him and get more info.
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Old Nov 20, 2008, 09:27 PM   #7
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As far as i know, no one has had a failure related to head studs yet.

In fact, with all the power some people are making on the stock block no one really knows where the weak point of this motor is yet.
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Old Nov 21, 2008, 07:11 AM   #8
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As far as i know, no one has had a failure related to head studs yet.

In fact, with all the power some people are making on the stock block no one really knows where the weak point of this motor is yet.
We will soon find out... LOL
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Old Nov 21, 2008, 01:01 PM   #9
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As far as i know, no one has had a failure related to head studs yet.

In fact, with all the power some people are making on the stock block no one really knows where the weak point of this motor is yet.
+1
4B11 FTW!!
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Old Nov 21, 2008, 02:35 PM   #10
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You should be safe at 25, but I wouldnt push much past that(just to be safe!).
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Old Nov 22, 2008, 04:01 AM   #11
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AMS made 487whp on the stock head studs on their USCC car. I'm sure you'll be fine.
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Old Nov 22, 2008, 04:01 AM
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1993, b18, b18c1, bolt, bolts, change, changing, civic, evo, evolution, head, headstuds, lexus, replace, studs

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