M50 turbo block head studs problem

[GG///M3]

He is using ca625 studs

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Mert runs S54’s

Mert needs a pork chop Sammie


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[pbonsalb]

But in the first post he said 10 mm studs and the VAC ARP 625 are 11mm?

[grkm143]

Vac arp 625+ head studs is 10mm standart

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[milKt]

Never seen this problem in many years...especially four (4) times.

[grkm143]

Never seen this problem in many years...especially four (4) times.

Which head gasket use ?

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[GG///M3]

I’ve used the Plutonian ceramicsammirammhammi ones with they hold up very well.

The Ces gaskets also work like a charm


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[milKt]

Which head gasket use ?

I've watched bf.c members use every gasket known to humans,
with every ARP spe (past to present and back)
and never read or heard of blocks being destroyed like this

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[pbonsalb]

I have seen people post pictures of cracked stud holes, but it’s usually from tapping for larger studs. Mike Radowski supposedly stopped using larger studs due to issues. But since someguy has a method that works, try it if you need to use larger studs.

[GG///M3]

I have seen people post pictures of cracked stud holes, but it’s usually from tapping for larger studs. Mike Radowski supposedly stopped using larger studs due to issues. But since someguy has a method that works, try it if you need to use larger studs.

Correct


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[someguy2800]

I have seen many many blocks cracked from the stud holes. Things that seam to contribute to the cracking are larger bore sizes, power over 900 whp, and larger thread diameters. I've never had one of mine crack but perhaps my time is coming.

But in the first post he said 10 mm studs and the VAC ARP 625 are 11mm?

Nope, they sell 10mm ones too.

[milKt]

I stand KorreCT'd

[Riyaaz8520]

Hi I have a m50 11 mm studs car been tuned in e50 Athena cutring gasket now I’m getting oil in my water bottle any advice wid b appreciated

[E30s50dude]

Hi I have a m50 11 mm studs car been tuned in e50 Athena cutring gasket now I’m getting oil in my water bottle any advice wid b appreciated

water bottle? are you referring to your catch can and are experiencing engine blow by?

[Riyaaz8520]

Hi not catch can . In my water bottle radiator does not have xpansion tank useing s50b30 rad&reservior , car does not overheat or build pressure in the water system.

[Riyaaz8520]

Hi not catch can . In my water bottle radiator does not have xpansion tank useing s50b30 rad&reservior , car does not overheat or build pressure in the water system.just oil on the top ov the water bottle

[Riyaaz8520]

The engine is m50 2.8 .wiseco piston 84.5 .eagle rods ,head is flowed stock cams use Athena cut ring gasket ,holset hx55 1.2bar boost car is on flex fuel e50

[Riyaaz8520]

?????????

[E30s50dude]

Hi not catch can . In my water bottle radiator does not have xpansion tank useing s50b30 rad&reservior , car does not overheat or build pressure in the water system.just oil on the top ov the water bottle

I would assume you may have a bit of oil condensation in the cooling system, but if you're not overheating or loosing coolant I wouldn't stress over it. Maybe someone else who has experienced what your talking about could chime in.

[Riyaaz8520]

Thanks for ur reply

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Hope others can help

[Riyaaz8520]

Hey found my problem block seems to be cracked from the bolt holes

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I’m useing arp s54 studs did not take the top treads away hoping this is the problem