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head gasket and ARP stud question
Posted: Oct 26, 2018 3:13 PM
by 5150ct
If i do an E to I conversion on my 84 528e, i was told compression would be somewhere around 8:1. Since this is already low should i use a stock head gasket or go to a MLS gasket and will the MLS lower compression further or is it same thickness as stock? Are ARP studs the same for both heads or do i need to order specific head studs for the E30 head im using or the E28 block, or some that are specific to this combo?
Re: head gasket and ARP stud question
Posted: Oct 29, 2018 7:23 PM
by 5150ct
...can anyone help me out with this?
Re: head gasket and ARP stud question
Posted: Oct 29, 2018 7:35 PM
by marc79euro645
MLS =multi layer (something), you can drill the 2 rivets and remove layers to reduce thickness. I'm not sure on the studs.
Re: head gasket and ARP stud question
Posted: Oct 30, 2018 8:15 AM
by tschultz
Depends on you target boost level. Low boost setups with conservative timing can get away with stock parts...
Re: head gasket and ARP stud question
Posted: Oct 31, 2018 2:09 PM
by 5150ct
I had to do head gasket anyway and figured so i wouldnt be working twice it would be best to just do it once and get it over with. I was thinking 14psi max.
Re: head gasket and ARP stud question
Posted: Nov 01, 2018 3:46 PM
by euroshark90
I just got my 635csi turbo done. I took it to the dyno and it ripped a 400whp pass on 20psi with a completely stock engine. The engine came from a 88 735il pulled from the junkyard. Turns out my wastegate wasn't working for the last 2 months haha
Re: head gasket and ARP stud question
Posted: Nov 03, 2018 2:23 PM
by tschultz
euroshark90 wrote:I just got my 635csi turbo done. I took it to the dyno and it ripped a 400whp pass on 20psi with a completely stock engine. The engine came from a 88 735il pulled from the junkyard. Turns out my wastegate wasn't working for the last 2 months haha
Where's your build thread!??
Re: head gasket and ARP stud question
Posted: Nov 09, 2018 7:06 AM
by euroshark90
Non existent yet, I have to gather my pics and info. Maybe one day.
Re: head gasket and ARP stud question
Posted: Dec 19, 2018 10:13 AM
by Nebraska_e28
5150ct wrote:I had to do head gasket anyway and figured so i wouldnt be working twice it would be best to just do it once and get it over with. I was thinking 14psi max.
Get with Todd @TCD, he'll get you the MLS you need. Great to work with.
Re: head gasket and ARP stud question
Posted: Jan 09, 2019 8:37 AM
by Nosis
Multi Layer Steel headgaskets are available in many thicknesses you have to decide what you want. I had a good experience with
www.cometic.com when i needed a headgasket for a volvo engine that had been bored out beyond any stock sizes, however it was not a boosted engine so I cannot speak to that aspect of MLS reliability, longevity, etc.