do you beleive this POLL

[ed hess]

They recommend a different tq spec on whether you use oil or molylube on the bolts. Since the stock blocks are not blinded tapped most builders use some from of sealant which screws with the tq vs stretch of the bolt. Studs help the situtation... as once the studs are in place the nut has a more direct pull/stretch that a bolt which has to twist.

If I recall the specs...65# tq was using molylube and 85# tq if using 30wt motor oil. I use the 30 wt oil (all of my holes are blind tapped) and 85# tq spec and never had a problem. Run a tap in each to clean for the best, accruate bolt/stud stretch for your tq reading.

When I used to use bolts (vs studs) I would always TQ to spec then wait 24 to 48 hrs and re-TQ. Gives the strecthed bolts time to relax. No matter how good you think ARP (or any bolt company) is, you will find after the first full spec TQ setting and some rest period, there will be some differences when you reTQ them.

With studs... I just spec TQ them and go have fun. Haven't blown a head gasket since using studs and cometic gaskets.

Ed....I see you O-ringed the block....whose gaskets are you using?? Also did you "figure 8"or do "full circle" o-rings. Some people prefer the "figure 8" method over the "full circle" ...seems to bite into the gasket better than having two "full circle" rings being close to each other.....this is more commom though when you do big bores and have less block material between the cylinders.

John

john
with bolts i had made 3 complete heat cycles, then a retorq. heads were confirmed straight, not going to pull block to check deck cuz is aint worththe trouble and i am not that concerend. 1st time they leaked was without receiver groove in heads. just redid them. 2nd time i had head grooves cut. both those times it was between 1&3 from no 1 with compression pushing past oring into upper cooling passage hole between 1 and 3 again from no 1.

this time it appear to be pusing past 3 & 5 from no 5.

no cracks in cylinders.

My best guess is its just that bolts arent enough. so like keith said, this much power and this much boost. Stuff twists, and you get enough runs on it and ya just deal with it. We put 65 runs on it since april when these gaskets went in.

It may just be that had we used studs i wouldnt be writing this.

as to:

>>Why don't you just say f--- the head gasket, and drop the bowtie in now....<<

because it just wouldnt be the same doing it without, like somebody said
Magic Dust heads, and bowtie block. etc.

the bowtie i have is bare, never used and we havent done anything yet in regard to machine work or new parts.

I would imagine a few are reading this cringing at the thought of haveing to pull heads and all. My thoughts on this: THATS RACING

No big deal to pull it apart, and slap it back together. so it might take a few hours between waiting oncustomers, stopping and starting. What the heck TF and FC teams do it a dozen times every weekend.

ed

 

[TurboManiacal]

You know...while you're in there....

 

[ed hess]

You know...while you're in there....

lol

funny thing about you saying this is, there are at least 3 other things being done while this is getting taken care of.

 

[Windedv6]

Ed

65 runs on your setup with haed bolts vs studs....you did good. Feel lucky the gaskets lasted all summer!! Hey...that's what the poll said!!! Save the bowtie for this winter....go out and do some 9s on the stock block...now that's a record that most ppl won't want to chase. Good Luck!

John

 

[ed hess]

Ed

65 runs on your setup with haed bolts vs studs....you did good. Feel lucky the gaskets lasted all summer!! Hey...that's what the poll said!!! Save the bowtie for this winter....go out and do some 9s on the stock block...now that's a record that most ppl won't want to chase. Good Luck!

John

john the funniest thing about the poll is that most people just dont beleive they were leaking.

1 who would beleive it, let alone why.

2 then again, it does sound crazy that anyone would keep racing if they were leaking...

Hey i dont need no stinkin head gaskets. lol

ed

 

[TurboManiacal]

Ed,

I believe that you can have head gaskets still be viable in normal operating conditions yet, will "blow" in high boost applications (i.e. 25lbs+) and when run back in normal hold again like normal.

Guess you just proved me right. You going copper this time?

 

[ed hess]

Ed,

I believe that you can have head gaskets still be viable in normal operating conditions yet, will "blow" in high boost applications (i.e. 25lbs+) and when run back in normal hold again like normal.

Guess you just proved me right. You going copper this time?

yeah thats probably correct, and yes going to keep using the same copper gaskets i have been using all along, which are req'd due to the orings.

should be some improvement changing to studs.... i should have the heads back on by the end of today..... prepping surfaces right now.

ed

 

[MPE Racing Fab]

You know...while you're in there....

lol

funny thing about you saying this is, there are at least 3 other things being done while this is getting taken care of.

:drinking: :drinking: :drinking: :drinking: :drinking: :drinking: :wink: :lol:

 

[ed hess]

You know...while you're in there....

lol

funny thing about you saying this is, there are at least 3 other things being done while this is getting taken care of.

:drinking: :drinking: :drinking: :drinking: :drinking: :drinking: :wink: :lol:

keith
50 bucks

get off the computer and get back to your welding bench!

ed

 

[myclone]

Could be "other" as in micro crack in the intake tract that leaks under high boost just enough to pressurize the coolant system and puke coolant into the overflow cannister.

It could be a lot of things besides a head gasket really however, I think youre full of crap no matter what (couldnt resist ).

 

[ed hess]

Could be "other" as in micro crack in the intake tract that leaks under high boost just enough to pressurize the coolant system and puke coolant into the overflow cannister.

It could be a lot of things besides a head gasket really however, I think youre full of crap no matter what (couldnt resist ).

this was a different cylinder than the 2 previous times.

not that it matters anyway cus the heads w/ studs and new gaskets are allready back on....

besides i only need a few more runs on this STOCK BLOCK, NO MAGIC DUST HEAD COMBO anyway...

I'm not about to go tearing it down and maganfluxing and whatever when it was such a gradual thing anyway. remember i saw it starting at the begginning just like the previous times. so once it starts to go I'm gonna keep right on using it till it gets to the point that the overflow pukes over after each run like ti did this time.

fwiw we were getting 5 runs on the overflow before it would max out for a very long time while the one side was leaking.

lets see what the difference is here between longevity with studs vs bolts.

ya know if i had a bigger overflow....

ed

 

[MPE Racing Fab]

Could be "other" as in micro crack in the intake tract that leaks under high boost just enough to pressurize the coolant system and puke coolant into the overflow cannister.

It could be a lot of things besides a head gasket really however, I think youre full of crap no matter what (couldnt resist ).

this was a different cylinder than the 2 previous times.

not that it matters anyway cus the heads w/ studs and new gaskets are allready back on....

besides i only need a few more runs on this STOCK BLOCK, NO MAGIC DUST HEAD COMBO anyway...

I'm not about to go tearing it down and maganfluxing and whatever when it was such a gradual thing anyway. remember i saw it starting at the begginning just like the previous times. so once it starts to go I'm gonna keep right on using it till it gets to the point that the overflow pukes over after each run like ti did this time.

fwiw we were getting 5 runs on the overflow before it would max out for a very long time while the one side was leaking.

lets see what the difference is here between longevity with studs vs bolts.

ya know if i had a bigger overflow....

ed

I'll run a hose off that current overflow for your helmet :lol: :wink: :drinking: