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