felpro 8553PT head gasket sealant

added cooling holes in head/block deck & matching holes added in head gaskets, how cant get em to seal (combustion leaking into & pressurizing the coolant). Any recommenbdations on what to ring the perimeter of these (added) holes? "the right stuff" or hondabond or hylomar or?.I know you ain't supposed to use anything on em but I have no choice now. I've changed em (3) times! to no avail. No Mas! here is a pic of my handiwork (IF I can get it to post).

No pic.... but how is the pressure getting to
the hole

Combustion pressure shouldn't be getting past the fire ring around the cylinder......

Alright let me back up a bit. The eng (360) in the stock car now ready to go (so I thought) is boiling the coolant out in a matter of minutes. I have changed head gaskets (3) times with my added holes each time (a time consuming deal). the new 360 going together any day now I have done the same mods & I have a pic of the head gasket holes I added but I cant get it catalogued? properly on the computer so I can access/locate em to post. I have not torn down the errant 360 yet to visual see what is up & I was thinking maybe I shoulda left well enough alone on this one but there just did not seem to be near enough holes in the decks & if it ain't broke fix it till it is broke right! unless there is a crack in those chinese knoffoff new mag heads that that crook Ben Gorman of Promax in Indianapolis sold me then alright yes it'd have to be getting past the fire ring. decks were checked flat/holes tapped/good threads in block/on head bolts/proper torque value/sequence

That's a pretty BOLD statement....

How did you check the heads and deck flat ??? From reading your posts over the years I picture you using a 2x4 ....

Have you pressure checked the heads ? I can't imagine head gaskets not working 3 times in a row unless you did something grossly wrong drilling those holes ???

You absolutely shouldn't have to drill holes in the headgasket. You've got something else going on.

All I can think of is going back to square 1...
plug the holes(tap them) and no holes in the gaskets
and see if you still have the problem.... make sure
the plus are below the surface (both the heads and the
block)

that crook Ben Gorman of Promax in Indianapolis ! Yea he is that Got me for 1000.00

Double R, Ben sold me a set of what were supposed to be EQ mag heads & it turns out that they are chinese knockoffs (& I have the paperwork/pics to prove it), that is why he is a crook. I worked with Eric Haugland of Las Vegas the EQ importer to sort out (& confirm) this. He is aware of his fraudulant activities also on others. My current machinist confirmed flatness (heads & block) & since the heads are new & were supposed to be quality items I assumed no pressure checking was needed. EDIT Mr P good solid advice from you (as usual). yes I think I should pressure check the heads (tho I have a feeling they might check out OK) then plug the holes as you stated (I think I out tricked myself on this deal!) & below flush caveat noted. thanks Bro

So we have drilled holes in the deck, and drilled holes in the head gaskets, and when they keep leaking, we're looking to blame the guy that supplied the heads?.... Moparts at its finest. Maybe a legit modification (????), but you can't really be surprised that they're leaking.... Can you? How about trying a set of gaskets out of the package and onto the block without taking a drill to them, and see if that works?? If it does, then you know that the modification is to blame.

reread it boy & get your facts straight. Yes I am thinking I made a mistake on my mods ("I think I out tricked myself") reread that. & yes the heads could be cracked (I stated that I think I might be OK there) and I am going to have them checked just to elim them. Ben Gorman is a crook & you read Verns post. If you still doubt that part get ahold of Eric in Vegas, he knows whats up with that scammer, he is a legit EQ importer of australian EQ heads & a VG guy to deal with, he even gave me a price break on some of his heads but your issue is with me & nobody else

Somewhat off topic here but is ProMax the same as ProMaxx. I'm looking at a set of small block ProMaxx heads at Jegs?

not a problem by me. I'm the OP & I think my inquiry has been answered as well as it can be! I dont know if it is (1) X or two, maybe I can find my receipt, its buried a bit but I'm sure someone knows the ans for you. it is Ben Gorman of Indianapolis, total crook. the intake holes were so high that I had to order some spacers custom made from SDS concepts (A member here & an excellent person to deal with) so that an intake would fit EDIT Eric says he has run into that before with the chinese knockoffs which these are

I have never heard of anyone drilling more holes in the deck surface and the heads. It sounds liked you created the problem. As far as the heads, that's a different story, but it's likely not going to fix your problem.

As usual:

1. Blazin' Bob didn't have the OCD under control and went too far. But at least you own it, good for you!

2. Blazin' Bob isn't blaming the heads for his problems. He well and truly got ripped off on those heads and he feels it is necessary to call out the crook who ripped him off, every time he mentions the heads.

3. We still love you, BB, in spite of the stream-of-consciousness posts that are nearly impossible to get on the first read. I'd say change your ways, but then I remembered that author William Faulkner got a Nobel Prize for basically doing what you do. Maybe you should write fiction!

R.

To anyone reading this post, I challenge you to read The Sound and the Fury by Faulkner. And no, it isn't about a big Plymouth!

Actually we did it on the 5.7 in the early days.... on the
dyno we seen too much heat and were trying to burn up pistons
and then it was how big to make the holes... too big and
you pull water from other areas.. has to be a balance

Racers have been doing it for years to cool specific areas, like the center two exhaust ports on a smallblock chevy. Or to vent steam pockets on Siamese cylinders.

R/.

Yep.. and we had to do the same thing for production
engines... it never works perfect the first time..
size and location of the holes is a big thing

yeah I it crossed my mind for a minute not to to it but this block barely has any holes so I knew I had to & to find out what I did wrong on the other one & not repeat it. after I made the holes I had to dremel around the perimeter to elim a bit of fluff so there is a very slight depression there a few tho below the gasket level that I was thinking of filling judiciously with something. Let me see if I can get the pics to come up.
GOT EM & on the one there is a small hole close to the fire ring & that is OE & I did not add any that were that close. EDIT you can see the darkened perimeter area that I was thinking of adding something to. Not sure if I should use anything (yet) but I for sure am gonna be real vigil on this one. any thought on a sealant?

No

On the top pic with the hole close to the fire
ring.. is that the top or bottom of the gasket...
it looks lite on the seal... see the blue.. if
thats the head side it needs more torque... JMO
EDIT
or the head isnt flat

P this is my new build going together. the other 360 that is leaking I ain't tore it down yet

I dont recall any holes overlaping that close to the fire
ring.. I'm gonna look at a stock gasket tomorrow

that itybity hole that looks to be an 1/8 (& is OE) & the two overlapping add ons to it are my doing. I did not add any that were closer to the FR than that OE one is as I tried to do this as safe as I could. the other one held 15 psi on a cold pump up but after firing it started boiling the coolant & two sets of subsequent gaskets modded by me the same way did the same thing & I (temporarily) threw in the towel & started on this 360

Ok

OK, this may be waaaay out there in the left field, but any chance that you have a gasket bore diameter / cylinder and/or chamfer bore / combustion chamber diameter missmatch?

In other words, does that FelPro gasket overhang the cylinder bore/chamfer/combustion chamber and actually expose the gasket material past the fire-ring?

Okay, first things first Robert. I'm NOT your boy! second, I wasn't saying that the head definitely isn't to blame. What I WAS saying is that before we go around throwing someones name through the mud whom isn't even privy to the conversation, you might want to VERIFY that his work is in fact to blame. I mean lets be honest here, you have drilled holes in a deck and each set of gaskets that you've tried. Perhaps the issue lies there??? My suggestion was to try to eliminate that as a possibility. I don't know this guy and I'm not defending him. Could be a dirtbag for all I know, but ASSUMING its his work without any evidence of such and posting his name on the internet under such an assumption is irresponsible. That was my point, and I read nothing wrong to begin with that led me to that opinion, of which I still have.

I hope you find your issue, and its an easy one to fix. Hopefully its not the modifications.

Correct you ain't my boy, that is just how I expressed my anger at what I felt was an improper response from you. Yes it sounded like you were blaming me for attacking him for being the cause of the leakage. actually 2 seperate issues, the leakage which is my doing cuz I drilled the holes in head/deck/gasket unless the head is cracked but I am thinking that it is not (as believe I stated originally) unless as far as the gasket goes if I missed something on the fire ring but I do wanna use some sealant this time (not sure what) but the 2nd deal is that he is a documented crook & I would highly advise anyone not to deal with him. Not sure what I want to (sparingly) put around the coolant holes but I feel I have to try something even this a different eng (block/heads) but I am doing the same coolant hole mods. I will post how it turns out