Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Head Studs?

Old Dec 22, 2015 | 04:21 AM
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Hoosier850Turbo's Avatar
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Default Head Studs?

So, I'm starting into the adventure of rebuilding my B5234T. It has 233K miles and a blown head gasket. I figure why do things half-way especially if I plan on keeping this car.


Here's the thing: I LOVE boost! The more the better. Hence the current head gasket state.


Problem: Torque-to-yield head bolts. They are garbage from Day 1.


Solution: ARP head studs. What experience do you guys have with these?


Thanks for your insight,


Hoosier 850 Turbo
 

Last edited by Hoosier850Turbo; Dec 22, 2015 at 04:23 AM.
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Old Dec 22, 2015 | 07:23 AM
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Head studs work, so do head bolts. I've used ARP head studs, notice no difference whatsoever, sold the engine with it and now back to using headbolts.

Though, neither is usually the cause of head gasket failure. Bad a/f ratio, over boost, overheating are the usual cause of head gasket failure. I'd spend the money for a wideband gauge instead.

 

Last edited by tryingbe; Dec 22, 2015 at 12:28 PM.
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Old Dec 22, 2015 | 11:12 AM
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now that's what your supposed to do with a double DIN radio. go half radio, half guages! Nice share on the pic! On the head bolt Q - either works, provided you go with new.
 
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Old Dec 22, 2015 | 03:40 PM
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Agreed, those gauges look pretty slick there!
 
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Old Dec 22, 2015 | 03:59 PM
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Just saying hello to a fellow Hoosier 850 owner. I've got a 97 855R and a 97 854R project car.

I did the head on my 855 and went back with the head bolts. Didn't really have a problem with them. Yeah, the fact that they are single use and you spend $25 every time you take the head on/off kinda bites, but it's not like you do that all that regularly
 
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Old Dec 22, 2015 | 05:54 PM
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Thanks for the replies so far. Yeah, I know that you can overboost, but the wastegate is set at like 3.3 lbs--pretty low. I want to hike it up, and yes add more fuel too. I just want the whole thing to live through the added boost.


Thanks again.
 
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